- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
imitate
-
amount
-
gaunt
-
hoi polloi
-
luscious
-
launchpad
-
pastime
-
indefinitely
-
tap
-
conjugated
- Hide translation
tropism
tropism /ˈtroʊpɪzəm/
noun
-
An involuntary orienting response; positive or negative reaction to a stimulus source
(
tropism
)
an involuntary orienting response; positive or negative reaction to a stimulus source