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Webster 1913 Edition

Phototonus

Pho-tot′o-nus

,

Noun.

[NL. See

, and

.]

1.

(Bot.)

A motile condition in plants resulting from exposure to light.

–

Phoˊto-ton′ic

(#)

,

Adj.

Definition 2024

phototonus

phototonus

English

Noun

phototonus ‎(uncountable)

sensitivity to, or irritation caused by light

Related terms

phototonic