apiculus

[ uh-pik-yuh-luh s, ey-pik- ]
/ əˈpɪk yə ləs, eɪˈpɪk- /

noun, plural a·pic·u·li [uh-pik-yuh-lahy, ey-pik-] /əˈpɪk yəˌlaɪ, eɪˈpɪk-/. Botany.

a small point or tip.

Origin of apiculus

1860–65; < New Latin, equivalent to apic- (stem of apex) apex + -ulus -ule