A colt with undescended testicles

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Ridgeling \Ridge"ling\, n. [Prov. E. riggilt, riggot, ananimal half castrated, a sheep having only one testicle; cf. Prov. G. rigel, rig, a barrow hog, rigler a cock half castrated.] (Zo["o]l.) A half-castrated male animal.

Wiktionary Word definitions in Wiktionary
alt. 1 male animal with at least one testicle still in the intestinal canal 2 imperfectly castrated male n. 1 male animal with at least one testicle still in the intestinal canal 2 imperfectly castrated male

WordNet Word definitions in WordNet
n. a colt with undescended testicles [syn: ridgling , ridgel , ridgil ]