mutafacient en · ADJ
Etymology
From muta- + -facient.
Meanings
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(not-comparable) capable of inducing mutation (used mainly of intracellular agents)
After indicating the mode in which these factors interact in determining the development of the organism and in affecting their own activist, it is shown that they have also a mutafacient action, i.e. are able to affect each other's mutation rates.
1945, Plant Breeding Abstracts: Volume 15, page 4:Size of circle indicates frequency of seedlings, continuous and direct but mutafacient and indirect.
1958, Genes, Plants, and People: Essays on Genetics, page 66: