单词	semiochemical
释义	semiochemical /ˌsiːmɪə(ʊ)ˈkɛmɪk(ə)l / noun Biochemistry A pheromone or other chemical that conveys a signal from one organism to another so as to modify the behaviour of the recipient organism.Animals or even plants may emit different semiochemicals (including pheromones) which serve as sexual attractants, repellents to potential predators, or inducements to flight mode.... They expected to confirm that grapefruit is highly attractive to the Mexican fruit fly, probably because a grapefruit gives off semiochemicals - a type of chemical signature that insects identify by smell. In particular, he is trying to determine whether genetically modified soybeans release the same semiochemicals as traditional soybean varieties to attract insects that parasitize stink bugs. Origin 1970s: from Greek ēmeion 'sign' + chemical.
随便看	race-plate race post racer racerback race-reader race-reading race-related race relations race riot race rioting race row racerunner race shed race stand race suicide race theorist race theory race thinker race thinking racetrack race train race-walk race walker race walking town twinning

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