Any of a number of minor characters in the Old Testament. / (rare) A male given name from Hebrew of biblical origin.

That has been subjected to photolysis.

(biochemistry) Either of two enantiomers of a derivative of the amino acid tyrosine.

(chemistry, historical) Oxygen gas, as originally thought to be air deprived of phlogiston (“the hypothetical fiery principle formerly assumed to be a necessary constituent of combustible bodies an...