repressor noun. [rɪ'prɛsǝ] E17.
[Latin, agent-noun from reprimere REPRESS.]
1. A person who or thing which represses something. rare. E17.

2. Biochemistry. A substance which by its action on an operon can inhibit the synthesis of a specific enzyme or set of enzymes. M20.

■ repressory adjective E20.

[TahlilGaran] English Dictionary ▲