Cingulates

Part of speech: noun

Definitions

1. Referring to a group of mammals characterized by protective bony armor plates on their backs and sides, typically including armadillos; belonging to an order distinguished by this armored protection and distinct skeletal features; representing creatures with a unique evolutionary adaptation involving a hard, segmented shell covering their bodies
2. Describing animals known for their distinctive dorsal shells made of bony plates fused to the skin, forming a mobile protective armor primarily found among certain mammals; pertaining to a classification of species exhibiting this characteristic form of body armor; identifying a specific group of mammals with a protective external casing derived from epidermal and skeletal structures
3. Pertaining to a biological category of mammals that possess an external shield composed of bone segments covered by a tough keratinous layer, which serves as defense against predators; relating to an order marked by this unusual integumentary modification; indicating animals that have evolved a rigid protective covering for survival purposes

Etymology: "Cingulates" is the plural of "cingulate", and the word's history runs through Latin rather than any tale of a single coiner. The Latin "cingulum" meant a girdle or belt, from "cingere", to gird or encircle. English took the adjective-forming suffix "-ate", which came from Latin "-atus", and attached it to "cingulum" to make "cingulate", meaning girdled or banded like a belt. The biological sense grows from that image. Zoologists applied "cingulate" to animals whose bodies are wrapped in bands of bony plates, and the armadillos, with their jointed shells encircling the body, are the classic example. "Cingulates" is the name for that group as a whole, so the belt in the Latin word has become a shell in the modern one.