Table of Contents
POS
HYPHEN
CIDE DICTIONARY

phototonus

 : 
Noun
 : 
pho=tot=o=nus

CIDE DICTIONARY

phototonusn. [NL. See Photo-, and Tone.].
  •  A motile condition in plants resulting from exposure to light.  [1913 Webster]
  •  An irritable condition of protoplasm, resulting in movement, due to a certain intensity of light.  [Webster 1913 Suppl.]

For further exploring for "phototonus" in Webster Dictionary Online


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