circulus

[ sur-kyuh-luhs ]

noun,plural cir·cu·li [-lahy]. /-ˌlaɪ/.
  1. any of the concentric circles on each scale of a fish, each of which indicates the annual growth of that scale.

Origin of circulus

1
<Latin: circle

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024