Definition of microsclere in US English:

microsclere

noun

Zoology
  • A small, isolated spicule of a sponge.

Origin

Late 19th century; earliest use found in William Sollas (1849–1936), geologist and anthropologist. From micro- + sclere.

Pronunciation

microsclere

/ˈmʌɪkrə(ʊ)sklɪə/