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.
hypervigilance. abnormally increased arousal, responsiveness to stimuli, and screening of the environment for threats; it is often associated with delusional or paranoid states. /hyÂ·perÂ·vigÂ·iÂ·lance/ (hiâ³per-vijÂ´Ä­-lans) abnormally increased arousal, responsiveness to stimuli, and scanning of the environment for threats.