circlip
nounUS /ˈsɝklɪp/ · UK /ˈsɜːklɪp/
Etymology Blend of circle + clip.
1
A type of fastener consisting of a flexible metal ring of spring steel with open ends which can be snapped into place. Internal and external forms exist.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.