Elastins

Part of speech: noun

Definitions

1. A type of protein found in connective tissues that provides elasticity and resilience to structures such as skin and blood vessels
2. A fibrous protein that contributes to the flexibility and stretchability of organs, particularly in the skin and lungs
3. A crucial component of extracellular matrices that allows tissues to resume their shape after stretching or contracting

Etymology: "Elastin" is a chemical coinage, not an ancient or traditional term. It is built from "elastic" plus the suffix "-in," the ending chemists attach to names of substances. The adjective "elastic" itself traces back through French "élastique" and New Latin "elasticus" to the Ancient Greek "elastos," meaning "driven, propelled," from "elaunein," to drive. So the chain runs from a verb about driving forward to a word for stretchiness, with the "-in" added only when scientists needed a name for the protein that gives tissue its spring. The suffix has its own path. It descends from a Latin ending "-inus," which passed through Old French and Middle English before becoming a standard English marker for substances, as in "gelatin" or "protein" relatives. Attaching it to "elastic" gave a name that describes the substance by its most notable property: the quality of springing back. The plural "elastins" is simply the form used when referring to more than one kind or sample of this protein, following the ordinary pattern for countable nouns.

Synonyms: proteins, fibers