01 a. Like, or pertaining to, the family Cyathophyllidæ.
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1.
Like, or pertaining to, the family Cyathophyllidæ.(Paleon.)
Entry
2 senses · 2 variants
Webster, 1913
Cyathophylloid
02 n. A fossil coral of the family Cyathophyllidæ; sometimes extended to fossil corals of other related families belonging to the group Rugosa; -…
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1.
A fossil coral of the family Cyathophyllidæ; sometimes extended to fossil corals of other related families belonging to the group Rugosa; -- also called cup corals. Thay are found in paleozoic rocks.(Paleon.) Also: cup corals