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Related to cetaceous: Sirenians


Any of various marine mammals of the order Cetacea, including the whales, dolphins, and porpoises, having the general shape of a fish with forelimbs modified to form flippers, a tail with horizontal flukes, and one or two blowholes for breathing.

[From New Latin Cētācea, order name, from Latin cētus, whale; see Cetus.]

ce·ta′cean, ce·ta′ceous (-shəs) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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Adj.1.cetaceous - of or relating to whales and dolphins etc
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[8] If we suppose the case of the discovery of a skeleton of a Greenland whale in a fossil state, not a single cetaceous animal being known to exist, what naturalist would have ventured conjecture on the possibility of a carcass so gigantic being supported on the minute crustacea and mollusca living in the frozen seas of the extreme North?
The studied vertebrate fossil remains mostly belong to cetaceous and correspond to different specimens as the remains come from different beds.
It has been reported that antibody production in response to the inoculation of sheep red blood cells and the cetaceous basophilic hypersensitivity (CBH) responses to inoculation with phytohaemagglutinin in white leghorn layers from 25 to 72 weeks of age did not differ significantly at either 24 or 40 weeks of age.