From WordNet (r) 2.0 (August 2003) [wn]:
linked
adj : connected by a link, as railway cars or trailer trucks [syn:
coupled, joined]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
linked \linked\ (l[i^][ng]kt), a.
1.
1. Associated.
[PJC]
2. (Genetics) Exhibiting linkage[5].
[PJC]
3. Having a connection.
[PJC] Linkboy
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Link \Link\ (l[i^][ng]k), v. t. [imp. & p. p. Linked
(l[i^][ng]kt); p. pr. & vb. n. Linking.]
To connect or unite with a link or as with a link; to join;
to attach; to unite; to couple.
[1913 Webster]
All the tribes and nations that composed it [the Roman
Empire] were linked together, not only by the same laws
and the same government, but by all the facilities of
commodious intercourse, and of frequent communication.
--Eustace.
[1913 Webster]