Buprenorphine (Subutex Â®) and buprenorphine and naloxone (Suboxone Â®) are used to treat opioid dependence (addiction to opioid drugs, including heroin and narcotic painkillers).
virescent â(comparative more virescent, superlative most virescent) 1  Green-like, greenish. 2  Becoming green.
Definition of QUINTESSENCE. 1. : the fifth and highest element in ancient and medieval philosophy that permeates all nature and is the substance composing the celestial bodies. 2. : the essence of a thing in its purest and most concentrated form. 3. â quinÂ·tesÂ·senÂ·tial \Ëkwin-tÉ-Ësen(t)-shÉl\ adjective.