critter

noun2

1. •
   (US, Australia) A creature, and specifically, an animal or something animal-like.

   • The San Juan market is Mexico City's most famous deli of exotic meats, where an adventurous shopper can hunt down hard-to-find critters such as ostrich, wild boar and crocodile. — 2013
2. •
   (US) A small locomotive used in an industrial setting.

   • One of the biggest challenges facing a railfan photographer is the correct identification of one manufacturer's "critter" locomotive from that of another competing builder. — 2025