physiological reaction

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physiological reaction
phytolacca acinosa n : pokeweed of southeastern asia and china [syn: indian poke, phytolacca acinosa]

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Noun
1. an automatic instinctive unlearned reaction to a stimulus
(synonym) reflex, instinctive reflex, innate reflex, inborn reflex, unconditioned reflex
(hypernym) reaction, response
(hyponym) accommodation reflex