Definition of penicillate in US English:

penicillate

adjective

Biology
  • Having, forming, or resembling a small tuft or tufts of hair.

    • ‘Brush mice have large ears, and are 7 to 9 inches long including a tufted (penicillate) tail which is slightly longer than their body.’
    • ‘The most characteristic feature of the genus is the distinctive erect, often densely penicillate conidiophores with phialides which bear slimy, one-celled hyaline to green, smooth-walled conidia in heads or columns.’

Origin

Early 19th century: from Latin penicillus ‘paintbrush’ + -ate.

Pronunciation

penicillate

/ˌpenəˈsilit/