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.
Historical Examples. 1  She sighed, and the sibilance of it echoed with a strange lingering note between those high gray walls. Stubble George Looms. 2  Her clan took the word up, and for a time the sibilance of it was like a hiss in the room. The Imitator Percival Pollard.