| prn | <abbreviation> L. Pro re nata, as the occasion arises; when necessary. (05 Mar 2000) |
|---|---|
| cleaning-in-place | <procedure> Cleaning and sterilising a bioreactor system without dismantling it. (14 Nov 1997) |
| place | 1. To assign a place to; to put in a particular spot or place, or in a certain relative position; to direct to a particular place; to fix; to settle; to locate; as, to place a book on a shelf; to place balls in tennis. "Upon my head they placed a fruitless crown." (Shak) 2. To put or set in a particular rank, office, or position; to surround with particular circumstances or relations in life; to appoint to certain station or condition of life; as, in whatever sphere one is placed. "Place such over them to be rulers." (Ex. Xviii. 21) 3. To put out at interest; to invest; to loan; as, to place money in a bank. 4. To set; to fix; to repose; as, to place confidence in a friend. "My resolution 's placed." 5. To attribute; to ascribe; to set down. "Place it for her chief virtue." (Shak) To place (a person), to identify him. Synonym: See Put. Origin: Cf. F. Placer. See Place. 1. Any portion of space regarded as measured off or distinct from all other space, or appropriated to some definite object or use; position; ground; site; spot; rarely, unbounded space. "Here is the place appointed." (Shak) "What place can be for us Within heaven's bound?" (Milton) "The word place has sometimes a more confused sense, and stands for that space which any body takes up; and so the universe is a place." (Locke) 2. A broad way in a city; an open space; an area; a court or short part of a street open only at one end. "Hangman boys in the market place." 3. A position which is occupied and held; a dwelling; a mansion; a village, town, or city; a fortified town or post; a stronghold; a region or country. "Are you native of this place?" (Shak) 4. Rank; degree; grade; order of priority, advancement, dignity, or importance; especially, social rank or position; condition; also, official station; occupation; calling. "The enervating magic of place." "Men in great place are thrice servants." (Bacon) "I know my place as I would they should do theirs." (Shak) 5. Vacated or relinquished space; room; stead (the departure or removal of another being or thing being implied). "In place of Lord Bassanio." 6. A definite position or passage of a document. "The place of the scripture which he read was this." (Acts viii. 32) 7. Ordinal relation; position in the order of proceeding; as, he said in the first place. 8. Reception; effect; implying the making room for. "My word hath no place in you." (John viii. 37) 9. <astronomy> Position in the heavens, as of a heavenly body; usually defined by its right ascension and declination, or by its latitude and longitude. <mathematics> Place of arms, the act of kicking the ball after it has been placed on the ground. Place name, the name of a place or locality. To give place, to make room; to yield; to give way; to give advantage. "Neither give place to the devil." . "Let all the rest give place." . To have place, to have a station, room, or seat; as, such desires can have no place in a good heart. To take place. To come to pass; to occur; as, the ceremony will not take place. To take precedence or priority. To take effect; to prevail. "If your doctrine takes place." . "But none of these excuses would take place." . To take the place of, to be substituted for. Synonym: Situation, seat, abode, position, locality, location, site, spot, office, employment, charge, function, trust, ground, room, stead. Origin: F, fr. L. Platea a street, an area, a courtyard, from Gr. Platei^a a street, properly fem. Of platys, flat, broad; akin to Skr. Prithu, Lith. Platus. Cf. Flawn, Piazza, Plate, Plaza. Source: Websters Dictionary (01 Mar 1998) |
| place theory | A theory of pitch perception which states that the perception of the pitch of a sound depends upon the level or region of the basilar membrane of the cochlea which is set into vibration by the sound waves. See: resonance theory of hearing. (05 Mar 2000) |
| absolute unit | A unit whose value is constant regardless of place or time and not derived from dependent on gravitation. (05 Mar 2000) |
| alexin unit | The smallest amount (highest dilution) of complement that will cause haemolysis of a unit of red blood cells in the presence of a haemolysin unit. Synonym: alexin unit. (05 Mar 2000) |
| Allen-Doisy unit | The quantity of oestrogen capable of producing in a spayed mouse a characteristic change in the vaginal epithelium, namely, disappearance of leukocytes and appearance of cornified cells, as determined by a vaginal smear; equal approximately to one-half of an estrone unit. Synonym: mouse unit. (05 Mar 2000) |
| amboceptor unit | haemolysin unit |
| androgen unit | The androgenic activity of 100 ug (0.1 mg) of crystalline androsterone as assayed by the comb growth response in capons. (05 Mar 2000) |
| antigen unit | The smallest amount of antigen that, in the presence of specific antiserum, will fix 1 complement unit. (05 Mar 2000) |
| antitoxin unit | A unit expressing the strength or activity of an antitoxin; in general, determined with reference to a preserved standard preparation of antitoxin. See: L doses. (05 Mar 2000) |
| antivenene unit | The amount of antivenum which, injected in the ear vein, will protect 1 g weight of rabbit against a fatal dose of snake venom. (05 Mar 2000) |
| atomic mass unit | <chemistry> One-twelfth the mass of a neutral atom of the most abundant isotope of carbon. (16 Dec 1997) |
| Bethesda unit | A measure of inhibitor activity: the amount of inhibitor that will inactivate 50% or 0.5 unit of a coagulation factor during the incubation period. Origin: Bethesda, MD (05 Mar 2000) |
| biological standard unit | A specific quantity of biologically active reference material (antibiotic, antitoxin, enzyme, hormone, vitamin, etc.). (05 Mar 2000) |