[bahy-sahy-klik, -sik-lik]
consisting of or having two cycles or circles.
Botany. in two whorls, as the stamens of a flower.
pertaining to or resembling a bicycle.
Also, bicyclical.

1875–80; bi-1 + cyclic Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
bicyclic or bicyclical (baɪˈsaɪklɪk, -ˈsɪklɪk)
1.  of, forming, or formed by two circles, cycles, etc
2.  (of stamens, petals, etc) arranged in two whorls
3.  (of a chemical compound) having atoms arranged in two rings fused together with at least two atoms common to each ring: naphthalene is bicyclic
bicyclical or bicyclical

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
bicyclic   (bī-sī'klĭk, -sĭk'lĭk)  Pronunciation Key 
  1. Relating to a compound having two closed rings. Naphthalene is a bicyclic compound.

  2. Composed of or arranged in two distinct whorls, as the petals of a flower.

The American Heritage® Science Dictionary
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