triffid
Concise Oxford English Dictionary © 2008 Oxford University Press:
triffid/ˈtrɪfɪd/
▶noun (in science fiction) a large predatory plant which is able to move about and has a poisonous sting.
– origin coined by John Wyndham in Day of the Triffids (1951).
'triffid' also found in these Oxford entries:

