essential
- Noun. A necessary ingredient.
- Noun. A fundamental ingredient.
- Adjective. Necessary.
- Adjective. Very important; of high importance.
- Adjective. Being in the basic form; showing its essence.
- Adjective. (context, of a lamination of a 3-manifold) Such that each complementary region is irreducible, the boundary of each complementary region is incompressible by disks and monogons in the complementary region, and no leaf is a sphere or a torus bounding a solid torus in the manifold.
- Adjective. (medicine) Idiopathic.
This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.
This entry was last updated on RefTopia from its source on 3/20/2012.