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 (bī-sĭk′lĭk, -sī′klĭk)
1. Consisting of or having two cycles.
2. Botany Composed of or arranged in two distinct whorls, as the petals of a flower.
3. Chemistry Relating to or being a molecule containing two rings, either by a fused or bridged arrangement.


(baɪˈsaɪklɪk; -ˈsɪklɪk) or


1. of, forming, or formed by two circles, cycles, etc
2. (Botany) (of stamens, petals, etc) arranged in two whorls
3. (Chemistry) (of a chemical compound) having atoms arranged in two rings fused together with at least two atoms common to each ring: naphthalene is bicyclic.


(baɪˈsaɪ klɪk, -ˈsɪk lɪk)

1. Also, bi•cy′cli•cal. consisting of or having two cycles or circles.
2. containing two rings of atoms in a molecule.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.bicyclic - having molecules consisting of two fused rings
cyclic - of a compound having atoms arranged in a ring structure
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References in periodicals archive ?
Jorgensen, Discovery and crystallography of bicyclic arylaminoazines as potent inhibitors of HIV-1 reverse transcriptase, Bioorg.
The bicyclic skeletal vibration absorption peak appeared at 576 [cm.
The aim of the partnership is to identify and develop treatments utilising Bicycle Therapeutics' proprietary bicyclic peptide (Bicycle) product platform.
PA-824 is one of the novel bicyclic nitroimidazole drugs for TB treatment that has already been in phase II clinical trials, and the other one is OPC-67683 (3).
Sugar oxazolines are bicyclic molecules having a distorted structure where a six-membered pyranose ring and a five-membered oxazoline ring are fused sharing the anomeric and C2 positions.
Commonly used modifications include the addition of 2'-O-methyl groups or 2'-O-methoxyethyl groups or bicyclic sugar modifications in which 2 sugar derivatives are bridged for nuclease resistance and increased affinity to RNA for inhibition of miRNA expression in cancer cell lines (67).
Generally, methyl branched ketones and alcohols are used as pheromone components by weevils of the subfamily Rhynchophorinae, with the exception of Cosmopolitessordidus (Germar), which uses a bicyclic ketal as pheromone (Beauhaire et al.
Naphthalene is the bicyclic aromatic compound formed from crude oil or coal tar.
Objective: The main objective of the proposed project is the establishment of a generically-applicable new therapeutic molecule format, which will be referred as bicyclic hetero peptidimer .
Polyketides and bicyclic acid derivatives from an Alternaria sp.
Purpald specifically forms a bicyclic heterocycle with aldehydes, which, upon oxidation, changes from colorless to purple [18].