clavate
Concise Oxford English Dictionary © 2008 Oxford University Press:
clavate /ˈkleɪveɪt/
▶adjective Botany & Zoology club-shaped; thicker at the apex than the base.
– origin C17: from mod. L. clavatus, from L. clava ‘club’.
'clavate' also found in these Oxford entries:

