| slovo | definícia |
Phototactic
(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.] |
| | podobné slovo | definícia |
Phototactically
(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.] |
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