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tropical cyclone
tropical fish
tropical product
tropical storm
tropical year
tropicalize
tropicbird
tropine
tropism
tropo-
tropology
tropomyosin
troponin
tropopause
troposphere
tropotaxis
-tropous
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tropism
tro·pism [ trṓ pìzzəm ]


noun 
Definition:
 
movement in response to stimulus: the involuntary response of an organism or one of its parts toward or away from a stimulus such as heat or light
[Late 19th century. < Greek tropos "turning" < trepein "turn"]

tro·pis·tic [ trō pístik ] adjective
tro·pis·ti·cal·ly [ trō pístikəlee ] adverb
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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