Quintessence :: Quintessence (n.) The fifth or last and highest essence or power in a natural body. See Ferment oils, under Ferment..
Quintessence :: Quintessence (n.) Hence: An extract from anything, containing its rarest virtue, or most subtle and essential constituent in a small quantity; pure or concentrated essence..
Quintessence :: Quintessence (v. t.) To distil or extract as a quintessence; to reduce to a quintessence.
Quintessential :: Quintessential (a.) Of the nature of a quintessence; purest.