A board foot is one foot long, one foot wide and one inch in thickness. Checking the Waste Mary Huston Gregory This is usually expressed in pounds per thousand board feet, a board foot being considered as one-twelfth of a cubic foot.
Sibilance is a manner of articulation of fricative and affricate consonants, made by directing a stream of air with the tongue towards the sharp edge of the teeth, which are held close together; a consonant that uses sibilance may be called a sibilant, or a strident.
flickÂ·er 1 (flÄ­kâ²Ér) v. flickÂ·ered, flickÂ·erÂ·ing, flickÂ·ers v.intr. 1. To move waveringly; flutter: shadows flickering on the wall. 2. a. To burn or shine unsteadily or fitfully: The candle flickered before sputtering out. b. To be displayed with fluctuating brightness: A movie flickered on the screen. 3. To appear briefly: A smile flickered on her face. v.tr. To cause to move waveringly. n. 1. A brief movement; a tremor. 2. An inconstant or wavering light. 3. A brief or slight sensation: a flicker of doubt. [Middle English flikeren, to flutter, from Old English flicerian.]