Quintessence (n.) : The fifth or last and highest essence or power in a
natural body. See Ferment oils, under Ferment.
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 (v. t.) : To distil or extract as a quintessence; to reduce to a quintessence.