Meaning of demosponge in English:

demosponge

Pronunciation /ˈdɛmə(ʊ)spʌn(d)ʒ/

noun

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

    Demosponges first appeared in the late Precambrian and constitute the majority of living sponges.

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.