| acceptor | (noun) the person (or institution) who accepts a check or draft and becomes responsible for paying the party named in the draft when it matures | - |
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| (noun) (chemistry) in the formation of a coordinate bond it is the compound to which electrons are donated | - |
| adaptor | (noun) device that enables something to be used in a way different from that for which it was intended or makes different pieces of apparatus compatible | Synonyms: adapter |
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| amboceptor | (noun) an immune body formed in the blood during infection or immunization that serves to link the complement to the antigen. | - |
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| baroreceptor | (noun) a sensory receptor that responds to pressure | - |
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| captor | (noun) a person who captures and holds people or animals | Synonyms: capturer |
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| chemoreceptor | (noun) a sensory receptor that responds to chemical stimuli | - |
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| descriptor | (noun) a piece of stored information that is used to identify an item in an information storage and retrieval system | - |
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| (noun) the phonological or orthographic sound or appearance of a word that can be used to describe or identify something | Synonyms: form, signifier, word form |
| emptor | (noun) a person who buys | Synonyms: buyer, purchaser, vendee |
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| enteroceptor | (noun) any receptor that responds to stimuli inside the body | Synonyms: interoceptor |
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| eoraptor | (noun) a theropod dinosaur of the genus Eoraptor | - |
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| exteroceptor | (noun) any receptor that responds to stimuli outside the body | - |
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| interceptor | (noun) a fast maneuverable fighter plane designed to intercept enemy aircraft | - |
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| interoceptor | (noun) any receptor that responds to stimuli inside the body | Synonyms: enteroceptor |
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| maniraptor | (noun) advanced carnivorous theropod; regarded as surviving today as living birds | - |
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| osmoreceptor | (noun) sensory end organ that responds to changes in osmotic pressure | - |
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| preceptor | (noun) teacher at a university or college (especially at Cambridge or Oxford) | Synonyms: don |
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| preemptor | (noun) a bidder in bridge who makes a preemptive bid | Synonyms: pre-emptor |
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| (noun) someone who acquires land by preemption | Synonyms: pre-emptor |
| proprioceptor | (noun) special nerve endings in the muscles and tendons and other organs that respond to stimuli regarding the position and movement of the body | - |
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| raptor | (noun) any of numerous carnivorous birds that hunt and kill other animals | Synonyms: bird of prey, raptorial bird |
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| receptor | (noun) an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation | Synonyms: sense organ, sensory receptor |
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| (noun) a cellular structure that is postulated to exist in order to mediate between a chemical agent that acts on nervous tissue and the physiological response | - |
| sculptor | (noun) an artist who creates sculptures | Synonyms: carver, sculpturer, statue maker |
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| thermoreceptor | (noun) a sensory receptor that responds to heat and cold | - |
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| utahraptor | (noun) large (20-ft) and swift carnivorous dinosaur having an upright slashing claw 15 inches long on each hind foot; early Cretaceous | Synonyms: superslasher |
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| velociraptor | (noun) small active carnivore that probably fed on protoceratops; possibly related more closely to birds than to other dinosaurs | - |
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