Definitions

1. adjective

Having a club-shaped or clavate (spike-like) structure, especially a clavate or club-shaped spore or spore-bearing organ.

“The fungus had clavellate spores that were easily visible under a microscope.”

2. adjective

Describing the shape of a clavate or club-shaped spike or spike-like structure on a plant or an organism.

“The new species of orchid had clavellate flowers with distinctive spikes.”