Wordnet 3.0
ADJECTIVE (1)
1. 
 having a common axis; 
[syn: coaxial, coaxal]
The Collaborative International Dictionary of English v.0.48:
coaxial \coaxial\ adj.
   having a common axis.
   Syn: coaxal.
        [WordNet 1.5]
WordNet (r) 3.0 (2006):
coaxial
    adj 1: having a common axis [syn: coaxial, coaxal]