a valve permitting liquids or gases to flow in one direction only.
a valve that closes by fluid pressure to prevent return flow Also called nonreturn valve
[chek-wey-muh n] /ˈtʃɛkˌweɪ mən/ noun, plural checkweighmen. 1. a representative elected by coal miners to the findings of the mine owner’s where miners are paid by the weight of coal mined.
[chek-rahy-ter] /ˈtʃɛkˌraɪ tər/ noun 1. a machine for printing amounts on , as by perforations, so as to prevent alterations.
[chek-ee] /ˈtʃɛk i/ adjective, Heraldry. 1. divided into several rows of squares of two alternating tinctures: a fess checky, or and azure. /ˈtʃɛkɪ/ adjective 1. (usually postpositive) (heraldry) having squares of alternating tinctures or furs; checked
- Check your six
verb phrase Look behind you [Fr the aviation term ”your six o’clock,” referring to the relative location of an aircraft with 12 o’clock being directly in front of the airplane]