graduator
n. ஒழுங்கான இடைவௌதகள் விட்டுக்கோடுகளை வகுப்பதற்கான கருவி.
Grad"u*a"tor, n. 1. One who determines or indicates graduation; as, a graduator of instruments. 2. An instrument for dividing any line, right or curve, into small, regular intervals. 3. An apparatus for diffusing a solution, as brine or vinegar, over a large surface, for exposure to the air.