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an·ti·feed·ant | \ ¦an-ˌtī-¦fē-dᵊnt 
, ¦an-tē- \
, ¦an-tē- \ plural antifeedants
Definition of antifeedant
: a natural or synthetic substance that stops or inhibits feeding by a pest and especially an insect
… pesticides derived from plants such as the neem tree, which act as antifeedants and repellents.— Sheila Daar, A New Look at Vegetables, Spring 1993
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Time Traveler for antifeedant
The first known use of antifeedant was in 1969
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