1. One who evaluates or makes assessments, esp. for purposes of taxation. — Also termed (specif.) tax assessor. [Cases: Taxation 309, 312. C.J.S. Taxation §§ 455–457, 459–461, 478–480.]
2. A person who advises a judge or magistrate about scientific or technical matters during a trial. See MASTER(2).
3. ADSESSOR. — assessorial (as-[schwa]-sor-ee-[schwa]l), adj. — assessorship, n.