from The Century Dictionary.
- noun Same as
from the GNU version of the Collaborative International Dictionary of English.
- noun (Zoöl.) A half-castrated male animal.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
maleanimal with at least one testiclestill in the intestinal canal
- noun imperfectly
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a colt with undescended testicles
from Wiktionary, Creative Commons Attribution/Share-Alike License
ridge + -ling, presumably from the supposition the remaining testicle(s) remain(s) near the back
-- In the ridgeling animal one or both of the testicles have not descended into the scrotal sac, and are usually lodged in the inguinal canal or abdominal cavity.