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rec. sec.
recalcitrant
recalesce
recalescence
recall
recamier
recanalization
recant
recap (1)
recap (2)
recapitulate
recapitulation
recaption
recapture
recapture mailing
recast
recce
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receptor

re·cep·tor [ ri séptər ] (plural re·cep·tors)


noun 
Definition:
 
1. physiology sensitive nerve ending: a nerve ending that is sensitive to stimuli and can convert them into nerve impulses

2. electronics receiving device: a device designed to receive electronic signals

3. chemistry specific cell binding site or molecule: a molecule, group, or site that is in a cell or on a cell surface and binds with a specific molecule, antigen, hormone, or antibody

4. environment receiver of pollution: somebody or something adversely affected by a pollutant

[15th century. Directly or via Old French receptour "person who harbors criminals or stolen goods" < Latin receptor< recipere (see receive)]
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