| ABACTOR | • abactor n. (Law, obsolete) One who steals and drives away cattle or beasts by herds or droves; a cattle rustler. • ABACTOR n. (obsolete) a cattle thief. |
| COACTOR | • coactor n. (Biology) An organism that participates in coaction. • coactor n. A joint actor; one who acts with other people in some enterprise. • COACTOR n. one who acts together with another. |
| EDUCTOR | • eductor n. One who, or that which, brings forth, elicits, or extracts. • EDUCTOR n. someone who or something which educes. |
| EJECTOR | • ejector n. One who, or that which, ejects or dispossesses. • ejector n. (Mechanics) A jet jump for lifting water or withdrawing air from a space. • ejector n. Ejector seat: a pilot’s seat in an airplane that can be forcibly ejected in the case of an emergency;… |
| ELECTOR | • elector n. (Politics) A person eligible to vote in an election; a member of an electorate, a voter. • Elector n. (Historical) A German prince entitled to elect the emperor of the Holy Roman Empire; a prince-elector. • ELECTOR n. one that elects. |
| ENACTOR | • enactor n. One who enacts. • ENACTOR n. one who enacts. |
| ERECTOR | • erector n. A person who, or a device which erects. • erector n. (Anatomy) Any of several muscles that make parts of the body erect. • erector n. An attachment to a microscope, telescope, etc. for making the image erect instead of inverted. |
| EVICTOR | • evictor n. One who evicts. • EVICTOR n. one who evicts. |
| EXACTOR | • exactor n. A person who makes illegal or unreasonable demands; an extortioner. • exactor n. A person who collects taxes. • EXACTOR n. one that exacts, also EXACTER. |
| FUNCTOR | • functor n. (Grammar) A function word. • functor n. (Object-oriented programming) A function object. • functor n. (Category theory) A category homomorphism; a morphism from a source category to a target category which… |
| PROCTOR | • proctor n. (US) A person who supervises students as they take an examination, in the United States at the college/university… • proctor n. (UK) An official at any of several older universities. • proctor n. (Britain, law) A legal practitioner in ecclesiastical and some other courts. |
| REACTOR | • reactor n. A person who responds to a suggestion, stimulation or other influence. • reactor n. (Chemistry, engineering) A structure used to contain chemical or other reactions. • reactor n. (Nuclear physics) A device which uses atomic energy to produce heat. |
| TRACTOR | • tractor n. (Agriculture) A vehicle used in farms e.g. for pulling farm equipment and preparing the fields. • tractor n. (Agriculture) A movable coop without a floor to allow for free ranging. • tractor n. (US) A truck (or lorry) for pulling a semi-trailer or trailer. |