英文字典中文字典Word104.com

The Collaborative International Dictionary of English v.0.48 (gcide)

Phototaxis \Pho`to*tax"is\, Phototaxy \Pho"to*tax`y\, n. [NL.
phototaxis; photo- Gr. ? an arranging.] (Biol.)
The influence of light on the movements of low organisms, as
various infusorians, the zoospores of certain alg[ae], etc.;
also, the tendency to follow definite directions of motion or
assume definite positions under such influence. If the
migration is toward the source of light, it is termed

{positive phototaxis}; if away from the light,

{negative phototaxis}. -- {Pho`to*tac"tic}, a. --
{Pho`to*tac"tic*al*ly}, adv.
[Webster 1913 Suppl.]

請選擇你想看的字典辭典：

單詞	字典	翻譯
Phototaxis	查看　Phototaxis　在Google字典中的解釋	Google英翻中〔查看〕
Phototaxis	查看　Phototaxis　在Yahoo字典中的解釋	Yahoo英翻中〔查看〕