| isopoda | <zoology> An order of sessile-eyed Crustacea, usually having seven pairs of legs, which are all similar in structure. The body is usually depressed, with the abdominal segments short, and often consolidated in part. The branchiae are on the abdominal appendages. The group includes the terrestrial pill bugs and sow bugs, with numerous marine forms. See Arthrostrata, Gribble. Origin: NL. See Iso-, and -poda. Source: Websters Dictionary (01 Mar 1998) |
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| isopodiform | <zoology> Having the shape of an isopod; said of the larvae of certain insects. Origin: Isopod. Source: Websters Dictionary (01 Mar 1998) |
| isopogonous | <zoology> Having the two webs equal in breath; said of feathers. Origin: Iso- + Gr. Beard. Source: Websters Dictionary (01 Mar 1998) |
| isopotential | Of equal electrical potential. Compare: isoelectric point. Synonym: isopotential. Isoelectric focusing, electrophoresis of small molecules or macromolecules in a pH gradient. (05 Mar 2000) |
| isoprecipitin | An antibody that combines with and precipitates soluble antigenic material in the plasma or serum, or in an extract of the cells, from another member, but not all members, of the same species. Origin: iso-+ precipitin (05 Mar 2000) |
| isoprenaline hydrochloride | isoproterenol hydrochloride |
| isoprenaline sulfate | Used for inhalation as an aerosol in the treatment of acute asthmatic attacks and chronic pulmonary emphysema. Synonym: isoprenaline sulfate. (05 Mar 2000) |
| isoprene | <chemistry> An oily, volatile hydrocarbon, obtained by the distillation of caoutchouc or guttaipercha. Origin: Etymol. Uncertain. Source: Websters Dictionary (01 Mar 1998) |
| isoprene rule | The classical, outmoded statement that naturally occurring terpenes are built up by condensation of isoprene units by either a 1-4 linkage ("head to tail") or a 4-4 linkage ("tail to tail"). (05 Mar 2000) |
| isoprene synthase | <enzyme> Catalyses the elimination of pyrophosphate from dimethylallyl diphosphate to form isoprene; requires magnesium or mn2+; responsible for leaf isoprene emission into the atmosphere; from aspen leaves; partial amino acid sequence given in first source Registry number: EC 2.5.1.- (26 Jun 1999) |
| isoprenoids | Polymers whose carbon skeletons consist in whole or in large part of isoprene units joined end to end; e.g., carotene, lycopene, vitamin A. Vitamins K and E and the coenzymes Q have isoprenoid side chains. (05 Mar 2000) |
| isoprenylation | See: prenylation. (18 Nov 1997) |
| isoprenylcysteine methyl ester hydrolase | <enzyme> Acts on proteins post-translationally isoprenylated on a cysteine 3 amino acids in from the carboxy terminus, followed by carboxymethylation Registry number: EC 3.1.1.- Synonym: isoprenylcys methylase (26 Jun 1999) |
| isopropamide iodide | (3-Carbamoyl-3,3-diphenylpropyl)diisopropylmethylammonium iodide;an anticholinergic agent. (05 Mar 2000) |
| isopropanol | Used as a component of various cosmetics and astringents, when taken internally can be toxic (27 Sep 1997) |
| isogamete |
one of two sex cells (gametes) that are alike in form. cf. anisogamete.
출처: www.anbg.gov.au/glossary/webpubl/fungloss.htm
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| isolate |
An individual (as a spore or a single organism), viable part of an organism (as a cell), or a strain that has been separated (as from diseased tissue, contaminated water, or the air) from the whole. Also, a pure culture produced from such an isolate. A particular strain of HIV taken from a patient.
출처: www.amfar.org/cgi-bin/iowa/bridge.html
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| isotope |
Chemically identical but anatomically different forms of an element (the number of neutrons are different so the atomic weight differs).
출처: www.modernhumanorigins.com/i.html
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| isometry |
Change in overall size that maintains the same relative proportional shape.
출처: www.modernhumanorigins.com/i.html
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| isomer |
One of a group of molecules that are exactly the same in atomic composition, but they are different in structural arrangement. For example, glucose and fructose.
출처: members.tripod.com/beckysroom/terms.htm
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