simple past tense and past participle of stew in one's own juices

The act by which something is swapped; an exchange.

(organic chemistry) The isoquinoline 4-[[(1R)-6,7-dimethoxy-2-methyl-3,4-dihydro-1H-isoquinolin-1-yl]methyl]-2-[[(1R)-1-[(4-hydroxyphenyl)methyl]-6-methoxy-2-methyl-3,4-dihydro-1H-isoquinolin-7-yl]...

(Christianity, derogatory, archaic) Belief in transubstantiation.