| leader peptide | <molecular biology> In the regulation of gene expression for enzymes concerned with amino acid synthesis in prokaryotes, the leader sequence codes for the leader peptide that contains several residues of the amino acid being regulated. Transcription is closely linked to translation and if translation is retarded by limited supply of amino acyl tRNA for the specific amino acid, the mode of transcription of the leader sequence permits full transcription of the operon genes, otherwise complete transcription of the leader sequence prematurely terminates transcription of the operon. (18 Nov 1997) |
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| leader sequence | <molecular biology> In the regulation of gene expression for enzymes concerned with amino acid synthesis in prokaryotes, the leader sequence codes for the leader peptide that contains several residues of the amino acid being regulated. Transcription is closely linked to translation and if translation is retarded by limited supply of amino acyl tRNA for the specific amino acid, the mode of transcription of the leader sequence permits full transcription of the operon genes, otherwise complete transcription of the leader sequence prematurely terminates transcription of the operon. (18 Nov 1997) |
| leader sequences | Sequences at the end of either nucleic acids (DNA and RNA) or proteins that must be processed off to allow for a specific function of the mature molecule. (05 Mar 2000) |
| leadership | <psychology> The function of directing or controlling the actions or attitudes of an individual or group with more or less willing acquiescence of the followers. (25 Jun 1999) |
| leadhillite | <chemical> A mineral of a yellowish or greenish white colour, consisting of the sulphate and carbonate of lead; so called from having been first found at Leadhills, Scotland. Source: Websters Dictionary (01 Mar 1998) |
| leading edge | The initial part of a wave form at maximum slope. (05 Mar 2000) |
| leading lamella | <cell biology> Anterior region of a crawling cell, such as a fibroblast, from which most cytoplasmic granules are excluded. (18 Nov 1997) |
| leading strand | The DNA strand that is synthesised continuously during replication Compare: lagging strand. (09 Oct 1997) |
| leadwort | <botany> A genus of maritime herbs (Plumbago). P. Europaea has lead-coloured spots on the leaves, and nearly lead-coloured flowers. Source: Websters Dictionary (01 Mar 1998) |
| leaf | To shoot out leaves; to produce leaves; to leave; as, the trees leaf in May. Origin: OE. Leef, lef, leaf, AS. Leaf; akin to S. Lf, OFries. Laf, D. Loof foliage, G. Laub,OHG. Loub leaf, foliage, Icel. Lauf, Sw. Lof, Dan. Lov, Goth. Laufs; cf. Lith. Lapas. Cf. Lodge. 1. <botany> A coloured, usually green, expansion growing from the side of a stem or rootstock, in which the sap for the use of the plant is elaborated under the influence of light; one of the parts of a plant which collectively constitute its foliage. Such leaves usually consist of a blade, or lamina, supported upon a leafstalk or petiole, which, continued through the blade as the midrib, gives off woody ribs and veins that support the cellular texture. The petiole has usually some sort of an appendage on each side of its base, which is called the stipule. The green parenchyma of the leaf is covered with a thin epiderm pierced with closable microscopic openings, known as stomata. 2. <botany> A special organ of vegetation in the form of a lateral outgrowth from the stem, whether appearing as a part of the foliage, or as a cotyledon, a scale, a bract, a spine, or a tendril. In this view every part of a plant, except the root and the stem, is either a leaf, or is composed of leaves more or less modified and transformed. 3. Something which is like a leaf in being wide and thin and having a flat surface, or in being attached to a larger body by one edge or end; as: A part of a book or folded sheet containing two pages upon its opposite sides. A side, division, or part, that slides or is hinged, as of window shutters, folding doors, etc. The movable side of a table. A very thin plate; as, gold leaf. A portion of fat lying in a separate fold or layer. One of the teeth of a pinion, especially when small. <zoology> Leaf beetle, any beetle which feeds upon leaves; especially, any species of the family Chrysomelidae, as the potato beetle and helmet beetle. Leaf bridge, a draw-bridge having a platform or leaf which swings vertically on hinges. <botany> Leaf bud, a sawfiy. To turn over a new leaf, to make a radical change for the better in one's way of living or doing. " They were both determined to turn over a new leaf." (Richardson) Source: Websters Dictionary (01 Mar 1998) |
| leaf blight | Any of various diseases which lead to the browning and dropping of a plant's leaves. (09 Oct 1997) |
| leaf-footed | <zoology> Having leaflike expansions on the legs; said of certain insects; as, the leaf-footed bug (Leptoglossus phyllopus). Source: Websters Dictionary (01 Mar 1998) |
| leaf-nosed | <zoology> Having a leaflike membrane on the nose; said of certain bats, especially. Of the genera Phyllostoma and Rhinonycteris. See Vampire. Source: Websters Dictionary (01 Mar 1998) |
| leafage | Leaves, collectively; foliage. Source: Websters Dictionary (01 Mar 1998) |
| leafcup | <botany> A coarse American composite weed (Polymnia Uvedalia). Source: Websters Dictionary (01 Mar 1998) |
Synonyms : Analysis, Least-Squares, Least Squares, Analyses, Least-Squares, Analysis, Least Squares, Least Squares Analysis, Least-Squares Analyses, Refinement, Rietveld
| lead |
a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey; "the children were playing with lead soldiers" an advantage held by a competitor in a race; "he took the lead at the last turn" evidence pointing to a possible solution; "the police are following a promising lead"; "the trail led straight to the perpetrator" take somebody somewhere; "We lead him to our chief"; "can you take me to the main entrance?"; "He conducted us to the palace" a position of leadership (especially in the phrase `take the lead'); "he takes the lead in any group"; "we were just waiting for someone to take the lead"; "they didn't follow our lead" leave: have as a result or residue; "The water left a mark on the silk dress"; "Her blood left a stain on the napkin" the angle between the direction a gun is aimed and the position of a moving target (correcting for the flight time of the missile) tend to or result in; "This remark lead to further arguments among the guests" travel in front of; go in advance of others; "The procession was headed by John" the introductory section of a story; "it was an amusing lead-in to a very serious matter" (sports) the score by which a team or individual is winning cause to undertake a certain action; "Her greed led her to forge the checks" star: an actor who plays a principal role run: stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point; "Service runs all the way to Cranbury"; "His knowledge doesn't go very far"; "My memory extends back to my fourth year of life"; "The facts extend beyond a consideration of her personal assets" head: be in charge of; "Who is heading this project?" (baseball) the position taken by a base runner preparing to advance to the next base; "he took a long lead off first" tip: an indication of potential opportunity; "he got a tip on the stock market"; "a good lead for a job" be ahead of others; be the first; "she topped her class every year" a news story of major importance contribute: be conducive to; "The use of computers in the classroom lead to better writing" spark advance: the timing of ignition relative to the position of the piston in an internal-combustion engine conduct: lead, as in the performance of a composition; "conduct an orchestra; Barenboim conducted the Chicago symphony for years" leash: restraint consisting of a rope (or light chain) used to restrain an animal pass or spend; "lead a good life" go: lead, extend, or afford access; "This door goes to the basement"; "The road runs South" thin strip of metal used to separate lines of type in printing precede: move ahead (of others) in time or space mixture of graphite with clay in different degrees of hardness; the marking substance in a pencil jumper cable: a jumper that consists of a short piece of wire; "it was a tangle of jumper cables and clip leads" run: cause something to pass or lead somewhere; "Run the wire behind the cabinet" the playing of a card to start a trick in bridge; "the lead was in the dummy" moderate: preside over; "John moderated the discussion"
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| lead time |
the time interval between the initiation and the completion of a production process; "the lead times for many publications can vary tremendously"; "planning is a area where lead time can be reduced"
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| lead acetate |
a poisonous white solid (Pb[CH3CO]2) used in dyeing cotton and in making enamels and varnishes
출처: wordnet.princeton.edu/perl/webwn
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| lead colic |
symptom of chronic lead poisoning and associated with obstinate constipation
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| leaf |
the main organ of photosynthesis and transpiration in higher plants flick: look through a book or other written material; "He thumbed through the report"; "She leafed through the volume" a sheet of any written or printed material (especially in a manuscript or book) turn over pages; "leaf through a book"; "leaf a manuscript" produce leaves, of plants hinged or detachable flat section (as of a table or door)
출처: wordnet.princeton.edu/perl/webwn
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| LEA | cause to undertake a certain action |
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| LEA | preside over |
| LEA | lead, as in the performance of a musical composition |
| LEA | move ahead (of others) in time or space |
| LEA | travel in front of |
| LEA | take somebody somewhere |
| LEA | be in charge of |
| LEA | be conducive to |
| LEA | result in |
| LEA | tend to or result in |
| LEA | stretch out over a distance, space, time, or scope |
| LEA | lead. extend, or afford access |