Definitions

1. noun

A group of animals that do not lay eggs with a shell, including mammals, birds, and some reptiles.

“The anamniota classifies all the warm-blooded animals that do not lay eggs, unlike fish and amphibians.”

2. noun

Animals that do not lay eggs, especially mammals and birds.

“In terms of classification, anamniota refers to all the vertebrates except for fish and amphibians.”