/
əˈseɪ,
ˈaseɪ/
n.
- the testing of a metal or ore to determine its ingredients and quality.
- a procedure for measuring the biochemical or immunological activity of a sample.
v.
- carry out an assay on.
- archaic attempt.
Derivative
Etymology
ME: from OFr. assai (n.), assaier (v.), var. of essai ‘trial’, essayer (see essay).