Definition of microfibrillar in English:

microfibrillar

Pronunciation /ˌmʌɪkrə(ʊ)fɪˈbrɪlə/ /ˌmʌɪkrə(ʊ)fʌɪˈbrɪlə/

adjective

Biology
  • Composed of microfibrils.

Origin

1930s; earliest use found in Science. From micro- + fibrillar, after microfibril.