Definition of reassay in English:

reassay

noun

  • The action of reassay; an instance of this, a second or subsequent assay.

verb

  • 1To retest the purity of (a metal or ore).

  • 2To perform a second or subsequent biochemical, physiological, or immunological assay of (a sample) to assess the strength or activity of a biologically active substance.

Origin

Mid 18th century; earliest use found in Acts of Assembly, Island Jamaica. Either from re- + assay, or directly from reassay<br>late 16th century (in an earlier sense). From re- + assay.

Pronunciation

reassay

/ˌriːˈaseɪ/