check rail

or check·rail

noun

(in a window sash) a meeting rail, especially one closing against the corresponding rail with a diagonal or rabbeted overlap.
Compare plain rail.

Origin of check rail

First recorded in 1875–80

Words nearby check rail

check off, check on, check out, check over, check protector, check rail, check up, check valve, check-in, check-over, checkable

British Dictionary definitions for checkrail

checkrail
/ (ˈtʃɛkˌreɪl) /

noun

British another word for guardrail (def. 2)