penicillus
noun
pen·i·cil·lus
| \ ˌpen-ə-ˈsil-əs
\
\
plural penicilli\ -ˌī
\
\
Medical Definition of penicillus
1
: one of the small straight arteries of the red pulp of the spleen
2
: the branching penicillate conidiophore in fungi of various genera (as Penicillium)