| AFD | accelerated freeze drying; acrofacial dysostosis |
|---|---|
| CPD | calcium pyrophosphate deposition; cephalopelvic disproportion; cerebelloparenchymal disorder; childh... |
| FD | familial dysautonomia; family doctor; fan douche; fatal dose; fetal danger; fibrin derivative; fibro... |
| FP | false positive; family physician; family planning; family practice; family practitioner; Fanconi pan... |
| fp | flexor pollicis; foot-pound; forearm pronated; freezing point |
| QF-DE | Quick freezing and deep etching |
|---|---|
| CPD | Critical point drying |
| FD | Freeze drying |
| critical point drying | <procedure> A method for preparing specimens for the scanning electron microscope that avoids the problems of shrinkage caused by normal drying procedures. Water in the specimen is replaced by an intermediate fluid, for example liquid carbon dioxide, avoiding setting up a liquid/gas interface and then the second fluid is allowed to vaporise by raising the temperature above the critical point, the temperature at which the liquid state no longer occurs. (18 Nov 1997) |
|---|---|
| freeze-drying | <technique> Method commonly adopted to produce a dry and stable form of biological material that has not been seriously denatured. By freezing the specimen, often with liquid nitrogen and then subliming water from the specimen under vacuum, proteins are left in reasonably native form and can usually be rehydrated to an active state. Since the freeze dried material will store without refrigeration for long periods, it is a convenient method for holding back up or reference material or for the distribution of antibiotics, vaccines etc. Synonym: lyophilization. (18 Sep 2002) |
| gastric freezing | Formerly used treatment for peptic ulcer designed to reduce or eliminate the production of acid gastric juice by freezing the secretory cells with a supercooled fluid introduced into a balloon positioned in the stomach. (05 Mar 2000) |
| freezing | Tending to freeze; for freezing; hence, cold or distant in manner. Freezing machine. See Ice machine, under Ice. Freezing mixture, a mixture (of salt and snow or of chemical salts) for producing intense cold. Freezing point, that degree of a thermometer at which a fluid begins to freeze; applied particularly to water, whose freezing point is at 32 deg Fahr, and at 0 deg Centigrade. Source: Websters Dictionary (01 Mar 1998) |
| freezing point | <physics> The temperature at which a liquid solidifies. (05 Mar 2000) |
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