reclinate a. [L. re, back; clinare, to lean] Inclined backward.
reclivous, reclivate a. [L. re, back; clivus, slope] 1. Having the form of a sigmoid curve; a convex and concave line. 2. (ARTHRO: Insecta) An insect wing vein having the front end farther from the wing base than the hind end. see verticle, inclivous.
recombinant a. [L. re, back; combinere, to join] Organisms or cells arising by genetic recombination.
recombinant DNA DNA produced by recombination, particularly DNA produced from 2 different species by techniques of genetic engineering.
recondite a. [L. reconditus, put away, hidden] Concealed; remote from ordinary or easy perception; hidden.
recrudescence n. [L. recrudescere, to become raw again] A new outbreak after a period of abatement or inactivity. recrudescent a.
recruitment trail (ARTHRO: Insecta) In social Hymenoptera, an odor trail laid by a single scout worker to recruit nest-mates to an area where many workers are needed.
rectal a. [L. rectus, straight] Of or pertaining to the rectum.
rectal caecum (SIPUN) A small blind tube present on the posterior or rectal section of the gut; function unknown.
rectal gills (ARTHRO: Insecta) In anisopteran Odonata nymphs, an elaborate system of folds in the wall of the rectum, the latter chamber forming the branchial basket.
rectal glands A term loosely applied to numerous glands adjacent to or associated with the anus; glands which often secrete either a lubricant, silk-gum, or other specialized material such as a gelatinous matrix for the protection of eggs.
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