Abbreviation or symbol for electrical resistance; radical (usually an alkyl or aryl group, e.g., ROH is an alcohol, RNH2 an amine); Réaumur; respiration; respiratory exchange ratio; roentgen; the remainder of a chemical formula; the calculated unit representing vascular resistance in the cardiovascular system; arginine; arginyl; purine nucleoside.
Abbreviation or symbol for (in italics) molar gas constant; one of two stereochemical designations in the Cahn, Ingold, and Prelog system; the third product formed in an enzyme-catalyzed reaction.
* * *
Behnken unit; Broadbent registration point; any chemical group [particularly an alfyl group]; a conjugative plasmid responsible for resistance to various elements; electrical resistance; in electrocardiography, the first positive deflection during the QRS complex [wave]; far point [Lat. remotum]; gas constant; organic radical; race; racemic; radioactive; radiology; radius; ramus; Rankine [scale]; rapid accelerator; rate; rate modulation [pacemaker]; ratio; reaction; Reaumur [scale]; receptor; rectal; rectified; red; registered trademark; regression coefficient; regular; regular insulin; regulator [gene]; rejection factor; relapse; relaxation; release [factor]; remission; remote; reperfusion; repressor; residual tumor [TNM (tumor-node-metastasis) classification]; residue; resistance; respiration; respiratory exchange ratio; respiratory quotient; response; responder; rest; restricted; reverse [banding]; rhythm; ribose; Rickettsia; right; Rinne [test]; roentgen; rough [colony]; rub

* * *

1) Reaumur
2) rough used in bacteriology
R symbol chemical group and esp. an organic chemical group <thiols have the general formula RSH>

* * *

arginine; organic radical; Rankine (see under scale); rate; expiratory exchange ratio; Rйaumur (see under scale); resistance (def. 3); respiration; rhythm; right; roentgen; rough (colony).

Medical dictionary. 2011.

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.