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11 wordies list
pheromone |
(n): a chemical substance secreted externally by some animals (especially insects) that influences the physiology or behavior of other animals of the same species
(n): a functionally specialized substance (especially one that is not a waste) released from a gland or cell
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This term was created in 1959 by two scientists to describe a chemical messenger released by the female silk worm moth to attract males.