FOCAL a.
Belonging to,or concerning, a focus; as, a focal point. Focal distance, or length,of a lens or mirror (Opt.), the distance of the focus from the surface of the lens or mirror, or more exactly, in the case of a lens, from its optical center. --Focal distance of a telescope, the distance of the image of an object from th…
FOG n. 8 definitions
A state of mental confusion. Fog alarm, Fog bell, Fog horn, etc., a bell, horn, whistle or other contrivance that sounds an alarm, often automatically, near places of danger where visible signals would be hidden in thick weather. -- Fog bank, a mass of fog resting upon the sea, and resembling distant land. -- Fog rin…
FOOL n. 8 definitions
ool, Court fool, etc. See under April, Court, etc. -- Fool's cap, a cap or hood to which bells were usually attached, formerly worn by professional jesters. -- Fool's errand, an unreasonable, silly, profitless adventure or undertaking. -- Fool's gold, iron or copper pyrites, resembling gold in color. -- Fool's para…
FOREST n. 4 definitions
A large extent or precinct of country, generally waste and woody, belonging to the sovereign, set apart for the keeping of game for his use, not inclosed, but distinguished by certain limits, and protected by certain laws, courts, and officers of its own. Burrill.