arc piece (arkpes)

In mech., a piece serving to adjust the angle of elevation of a cutting-tool. arc-secant (ärk'sē kant), n. In math., an angle regarded as a function of its secant. arc-sine (ärk's in), n. In math., an angle regarded as a function of its sine. arctt (ärkt), v. t. See art3. Arctalia (ärk-tā'li-ä), n. [NL., Arctiidæ embracing the seas of the northern hemisphere as far to the south as floating ice descends. Gill.