With highest (of three degrees of) praise; as noted, as an honor, on diplomas and degrees for work that is considered to be of the highest quality.

Characteristic of a millionaire

(organic chemistry) The cationic form of a polycyclic aromatic base, name 3,8-Diamino-5-ethyl-6-phenylphenanthridinium, whose bromide is used as a stain for nucleic acids

medical and surgical