'Cycloid scale' definitions:

Definition of 'Cycloid scale'

From: GCIDE
  • Cycloid \Cy"cloid\, a. (Zool.) Of or pertaining to the Cycloidei. [1913 Webster]
  • Cycloid scale (Zool.), a fish scale which is thin and shows concentric lines of growth, without serrations on the margin. [1913 Webster]