**Acyclic** — can refer to: * in chemistry, a compound which is not cyclic, e.g. alkanes and acyclic aliphatic compounds * in mathematics: ** a directed acyclic graph ** a chain complex in which all reduced homology groups are zero … Wikipedia

**Acyclic** — A*cyc lic, a. [Pref. a not + cyclic.] Not cyclic; not disposed in cycles or whorls; as: (a) (Bot.) Of a flower, having its parts inserted spirally on the receptacle. (b) (Org. Chem.) Having an open chain structure; aliphatic. [Webster 1913… … The Collaborative International Dictionary of English

**acyclic** — [ā sīk′lik] adj. 1. not cyclic; not in cycles 2. Chem. having the structure of an open chain … English World dictionary

**acyclic** — /ay suy klik, ay sik lik/, adj. 1. not cyclic: an acyclic flower; acyclic compounds. 2. Chem. of or pertaining to a compound that does not contain a closed chain or ring of atoms (contrasted with cyclic). [1875 80; A 6 + CYCLIC] * * * … Universalium

**acyclic** — Not cyclic; denoting especially an a. compound. * * * acy·clic ( )ā sī klik, sik lik adj 1) not occurring in periods or cycles <acyclic gonadotropin secretion> 2) having an open chain structure esp ALIPHATIC <an acyclic compound> * *… … Medical dictionary

**acyclic** — adjective Date: 1875 not cyclic: as a. not disposed in whorls or cycles b. having an open chain structure ; aliphatic < an acyclic compound > … New Collegiate Dictionary

**Acyclic diene metathesis** — or ADMET is a special type of olefin metathesis used to polymerize certain terminal dienes to polyenes: The new double bonds formed can be in cis or trans configuation.It is a type of step growth condensation reaction whereas the other metathesis … Wikipedia

**Acyclic space** — In mathematics, an acyclic space is a topological space X in which cycles are always boundaries, in the sense of homology theory. This implies that the integral homology groups in all dimensions of X are isomorphic to the corresponding homology… … Wikipedia

**Acyclic coloring** — In graph theory, an acyclic coloring is a (proper) vertex coloring in which every 2 chromatic subgraph is acyclic.The acyclic chromatic number A( G ) of a graph G is the least number of colors needed in any acyclic coloring of G .Some properties… … Wikipedia

**Acyclic models theorem** — In Algebraic Topology, the Method of Acyclic Models, or Acyclic Models Theorem describes a process by which two homology theories can be shown to be isomorphic. The theorem was developed by topologists Samuel Eilenberg and Saunders MacLane. They… … Wikipedia