• Webster's Revised Unabridged Dictionary
    • n Cyathophylloid (Paleon) 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.
    • a Cyathophylloid (Paleon) Like, or pertaining to, the family Cyathophyllidæ.
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Century Dictionary and Cyclopedia
    • cyathophylloid Resembling the Cyathophyllidæ.
    • ***


Webster's Revised Unabridged Dictionary
NL. cyathophyllum, fr. Gr. ky`aqos a cup + fy`llon a leaf


In literature:

When are cyathophylloid corals to be found in fossiliferous sandstone of Tertiary origin?
"A Cadet's Honor" by Upton Sinclair