| reversible calcinosis | A form of calcinosis sometimes observed in patients who constantly ingest large quantities of milk and alkaline medicines, as in the treatment of peptic ulcer. (05 Mar 2000) |
|---|---|
| reversible colloid | A colloid that is again soluble in water after having been dried at ordinary temperature. Synonym: stable colloid. (05 Mar 2000) |
| reversible decortication | A temporary loss of function of the cerebral cortex. (05 Mar 2000) |
| reversible hydrocolloid | A hydrocolloid composed of a base substance whose physical state may be changed to that of a liquid by the application of heat and then changed to that of an elastic gel by cooling. (05 Mar 2000) |
| reversible hydrogenase | <enzyme> Isolated from heterocysts and vegetative cells of anabena Registry number: EC 1.12.- (26 Jun 1999) |
| reversible process | <chemistry> A cyclic process carried out by a hypothetical pathway, which leaves the universe exactly the same as it was before the process, no real process is reversible. For chemical systems we consider a process at equilibrium to be reversible. Examples are phase transitions that occur at the melting point or boiling point temperatures at 1 atm pressure. (09 Jan 1998) |
| reversible reaction | A chemical reaction that takes place in either direction i.e., from the forward or reverse direction; ionization is such a reaction, as are reaction's involving racemases, isomerases, mutases, transferases, etc. (05 Mar 2000) |
| reversible shock | Shock that will respond to treatment and from which recovery is possible. (05 Mar 2000) |
| reversion | <molecular biology> Reversion of a mutation occurs when a second mutation restores the function that was lost as a result of the first mutation. The second mutation causes a change in the DNA that either reverses the original alteration or compensates for it. (18 Nov 1997) |
| revert | 1. To turn back, or to the contrary; to reverse. "Till happy chance revert the cruel scence." (Prior) "The tumbling stream . . . Reverted, plays in undulating flow." (Thomson) 2. To throw back; to reflect; to reverberate. 3. <chemistry> To change back. <mathematics> See Revert, To revert a series, to treat a series, as y = a + bx + cx^2 + etc, where one variable y is expressed in powers of a second variable x, so as to find therefrom the second variable x, expressed in a series arranged in powers of y. Origin: L. Revertere, reversum; pref. Re- re- + vertere to turn: cf. OF. Revertir. See Verse, and cf. Reverse. 1. To return; to come back. "So that my arrows Would have reverted to my bow again." (Shak) 2. To return to the proprietor after the termination of a particular estate granted by him. 3. <biology> To return, wholly or in part, towards some preexistent form; to take on the traits or characters of an ancestral type. 4. <chemistry> To change back, as from a soluble to an insoluble state or the reverse; thus, phosphoric acid in certain fertilisers reverts. Source: Websters Dictionary (01 Mar 1998) |
| revertant | In microbial genetics, a mutant that has reverted to its former genotype (true reversion) or to the original phenotype by means of a suppressor mutation. Origin: L. Re-vertans, pros. P. Of re-verto, to turn back (05 Mar 2000) |
| revertent | <medicine> A remedy which restores the natural order of the inverted irritative motions in the animal system. Source: Websters Dictionary (01 Mar 1998) |
| revery | Origin: F. Reverie, fr. Rever to dream, rave, be light-headed. Cf. Rave. 1. A loose or irregular train of thought occurring in musing or mediation; deep musing; daydream. "Rapt in nameless reveries." "When ideas float in our mind without any reflection or regard of the understanding, it is that which the French call revery, our language has scarce a name for it." (Locke) 2. An extravagant concient of the fancy; a vision. "There are infinite reveries and numberless extravagancies pass through both [wise and foolish minds]" (Addison) Source: Websters Dictionary (01 Mar 1998) |
| revet | To face, as an embankment, with masonry, wood, or other material. Origin: See Revetment. Source: Websters Dictionary (01 Mar 1998) |
| revetment | A facing of wood, stone, or any other material, to sustain an embankment when it receives a slope steeper than the natural slope; also, a retaining wall. Alternative forms: revetement . Origin: F. Revetment the lining of a dith, fr. Revetir to clothe, L. Revestire. See Revest. Source: Websters Dictionary (01 Mar 1998) |