Definition of demosponge in English:

demosponge

noun

Zoology
  • Any of numerous sponges constituting the large class Demospongiae, with skeletons made of spongin fibres (with or without silica spicules).

Origin

Late 19th century; earliest use found in William Sollas (1849–1936), geologist and anthropologist. From ancient Greek δῆμος common people + sponge, after scientific Latin Demospongiae, class name, so named because it constitutes the great majority of sponges.

Pronunciation

demosponge

/ˈdɛmə(ʊ)spʌn(d)ʒ/