littermate

American  

[lit-er-meyt] / ˈlɪt ərˌmeɪt /

noun

1. one of a pair or group of animals born or reared in the same litter.

---

Etymology

Origin of littermate

First recorded in 1920–25; litter + mate ¹

Example Sentences

Later, Frankie, the recovered Afghan hound, and her littermate Belle stood side-by-side in their breed’s ring.

From Seattle Times

Then-Red Sox infielder Ian Kinsler also adopted a littermate.

From Seattle Times

Four months later, his littermate, Jessie, was diagnosed with head and neck cancer.

From Los Angeles Times

Once a cub has been tackled by its littermates, roles might reverse such that a littermate handicaps itself, allowing the other cub to tackle it in return.

From Scientific American

N184 was first recruited for the study as a cub when her mother and a female littermate lived in the same area of Haw Creek.

From Washington Times