American Heritage Dictionary
(2)
Century Dictionary
(4)
GNU Webster's 1913
(1)
WordNet
(1)
Elsewhere on the web
Ctenoid Fish Scale - Three general types of ctenoid scales have been categorized, but each type is composed of two key sections; a rigid surface layer chiefly consisting of crystallized calcium salts and a deeper layer that is formed by collagen-type fibrils.
The distinction between the ctenoid scale types, therefore, is primarily based upon their form.
Basic ctenoid scales, on the other hand, exhibit ctenii, which are formed as separate bony growths distinct from the main body of the scale.
Cycloid Fish Scale - The primary types of fish scales include placoid, cosmoid, ganoid, ctenoid, and cycloid scales.
Thin, translucent, and lacking enamel as well as dentine, these modern structures are known as cycloid and ctenoid scales.

American Heritage Dictionary (1)
Century Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
We are still working on calculating this word's frequency.
Recently looked uptransmural · moot · kunna · neuroticism · juxtaposition |
Recent Favoritespygopagus · sanglant · Astacus · sweetbread · qualms |
Recent Pronunciationsqualms · poofter · oh for heaven's sake · embodies · silence |