n. 诱变剂

[医] 诱变剂, 致变物

[ noun ]
any agent (physical or environmental) that can induce a genetic mutation or can increase the rate of mutation
<noun.object>

mutagen \mu"ta*gen\ (m[=u]"t[.a]*j[e^]n), n.
A chemical compound or other external influence (such as
ionizing radiation) which causes mutations[3].
[PJC]