attractant

[uh-trak-tuhnt]
noun
an attracting agent or substance; lure: the sex attractant of the cockroach; a synthetic attractant used to bait insect traps.

Origin:
1915–20; attract + -ant

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attractant (əˈtræktənt)
 
n
See also pheromone a substance that attracts, esp a chemical (sex attractant) produced by an insect and attracting insects of the same species

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
All of them have distinctive odors that give them their attractant and repellent properties.
As a registered biochemical pesticide, it is intended for use as an attractant for yellow jackets in traps.
All millets are a major attractant to doves and other seed eating birds.
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