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Pronunciation varies by accent · adjective
(biology, genetics, of a trait) lethal to at least half of all affected organisms.
Use semilethal when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Semilethal means (biology, genetics, of a trait) lethal to at least half of all affected organisms.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use semilethal where its definition matches the intended context.
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