[es-een, e-seen] /ˈɛs in, ɛˈsin/
a member of a Palestinian sect, characterized by asceticism, celibacy, and joint holding of property, that flourished from the 2nd century b.c. to the 2nd century a.d.
(Judaism) a member of an ascetic sect that flourished in Palestine from the second century bc to the second century ad, living in strictly organized communities
1550s, member of a Jewish sect (first recorded 2c. B.C.E.), from Latin, from Greek Essenoi, of disputed etymology, perhaps from Hebrew tzenum “the modest ones,” or Hebrew hashaim “the silent ones.” Klein suggests Syriac hasen, plural absolute state of hase “pious.”
a Jewish mystical sect somewhat resembling the Pharisees. They affected great purity. They originated about B.C. 100, and disappeared from history after the destruction of Jerusalem. They are not directly mentioned in Scripture, although they may be referred to in Matt. 19:11, 12, Col. 2:8, 18, 23.
[uh-sen-shuh l] /əˈsɛn ʃəl/ adjective 1. absolutely necessary; indispensable: Discipline is essential in an army. 2. pertaining to or constituting the essence of a thing. 3. noting or containing an essence of a plant, drug, etc. 4. being such by its very nature or in the highest sense; natural; spontaneous: essential happiness. 5. Mathematics. noun […]
noun, Biochemistry. 1. any amino acid that is required by an animal for growth but that cannot be synthesized by the animal’s cells and must be supplied in the diet. essential amino acid n. An alpha-amino acid that is required for protein synthesis but cannot be synthesized by humans and must be obtained in the […]
- Essential complexity
programming A measure of the “structuredness” of a program. (1996-05-13)
- Essential dysmenorrhea
essential dysmenorrhea n. See primary dysmenorrhea.