The Collaborative International Dictionary
Acaleph
Acaleph \Ac"a*leph\, Acalephan \Ac`a*le"phan\n.; pl. Acalephs, Acalephans. [See Acaleph[ae].] (Zo["o]l.) One of the Acaleph[ae]. [1913 Webster] ||
Wiktionary
acaleph
n. (context dated English) A member of the former Acalephae family, now a part of the Cnidaria phylum.