Definition of Madreporaria in English:

Madreporaria

plural noun

Zoology
another term for Scleractinia
‘Madreporaria have greatly variable shapes widely depending on the physical and chemical conditions of the environment.’
another term for Scleractinia
‘Madreporaria are closely related to the Actiniaria (the common sea anemone), but unlike the latter, they produce a calcium carbonate skeleton and have less developed muscles and ciliated body walls.’

Origin

Modern Latin (plural), from Madrepora (genus name), from Italian, probably from madre ‘mother’, with reference to the prolific growth of the coral.

Pronunciation

Madreporaria

/ˌmadrɪpəˈrɛːrɪə/