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Pronunciation varies by accent · noun
A chemical (any one of a class of chemicals) secreted by fern gametophytes which promote the production of male gametangia..
Use antheridiogen when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Antheridiogen means A chemical (any one of a class of chemicals) secreted by fern gametophytes which promote the production of male gametangia..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use antheridiogen where its definition matches the intended context.
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