检定

检定	jiǎn dìng	a test / determination / to check up on / to examine / to assay
检	jiǎn	to check / to examine / to inspect / to exercise restraint
定	dìng	to fix; to set; to make definite / to subscribe to (a newspaper etc); to book (tickets etc); to order (goods etc) / to congeal; to coagulate / (literary) definitely