keystoning
/ˈkiːstəʊnɪŋ/noun
The action of giving something a trapezoidal shape; the result of this. Now chiefly Cinematography, Television, and Photography : the keystone effect; distortion arising from this.
Origin
1920s; earliest use found in U.S. Patents. From keystone + -ing.
- suppurant
- suppurate
- suppurater
- suppuration
- suppurative
- suppurator
- suppute
- supr.
- supra
- supra-
- supra-angular
- supra-auditory
- supra-auricular
- supra-axillary
- supracargo
- supracaudal
- supracelestial
- supracentenarian
- suprachiasmatic nucleus
- suprachorioid
- suprachorioidal
- suprachorioidea
- suprachoroid
- suprachoroidal
- suprachoroidea