Wordnet 3.0
NOUN (1)
1.
the sport of traveling on a bicycle or motorcycle;
The Collaborative International Dictionary of English v.0.48:
Cycle \Cy"cle\ (s?"k'l), v. i. [imp. & p. p. Cycled. (-k'ld);
p. pr. & vb. n. Cycling (-kl?ng).]
1. To pass through a cycle[2] of changes; to recur in cycles.
--Tennyson. --Darwin.
[1913 Webster]
2. To ride a bicycle, tricycle, or other form of cycle.
[1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Cycling \Cy"cling\ (s?"kl?ng), n.
The act, art, or practice, of riding a cycle, esp. a bicycle
or tricycle.
[1913 Webster]
WordNet (r) 3.0 (2006):
cycling
n 1: the sport of traveling on a bicycle or motorcycle