Pho*tot"ro*pism(?), n. [Photo- + Gr. to turn.] 1. (Plant Physiol.) The tendency of growing plant organs to move or curve under the influence of light. In ordinary use the term is practically synonymous with heliotropism.
[Webster 1913 Suppl.]
(Microbiology) exhibiting movement in a direction toward (positive phototropism) or away from (negative phototropism) a source of light.
New - Add Dictionary Search to Your Site
You can add a free dictionary search box to your own web site by copying and pasting the following HTML into one of your web pages:
<form action="http://www.freedict.co.uk/search.php" method="post"> <p style="text-align: center; font-family: sans-serif;"> <a style="font-weight: bold;" href="http://www.freedict.co.uk/" title="FreeDict free online dictionary">FreeDict</a> <input type="text" name="word" size="20" value="" /> <input type="submit" name="submit" value="Search Dictionary" /> </p> </form>
Thu 12th December 2019