en- is attached to adjectives or nouns to form verbs meaning: 1  to cause (a person or thing) to be in (the place, condition, or state mentioned);  to restrict on all sides, completely:en- + circle â encircle (= to restrict on all sides within a circle).
In mathematics a divisor of an integer n {\displaystyle n} , also called a factor of n {\displaystyle n} , is an integer that can be multiplied by some other integer to produce n {\displaystyle n} .
repressor reÂ·presÂ·sor (rÄ­-prÄs'Ér) n. One that represses. A protein, especially either of two proteins produced by regulatory genes, that blocks transcription of an operon.