(n.pl.) An order of fishes, formerly proposed by Agassiz, for those with thin, smooth scales, destitute of marginal spines, as the herring and salmon. The group is now regarded as artificial.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Cycloidei. Retrieved September 20, 2026, from http://smartdefine.org/cycloidei/definitions/1994039 |
| Chicago | Webster's. 2011. "Cycloidei" http://smartdefine.org/cycloidei/definitions/1994039 (accessed September 20, 2026). |
| Harvard | Webster's 2011, Cycloidei, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/cycloidei/definitions/1994039>. |
| MLA | Webster's. "Cycloidei" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/cycloidei/definitions/1994039> |