From The Collaborative International Dictionary of English v.0.48 [gcide]:
Linga \Lin"ga\ (l[i^][ng]"g[.a]), Lingam \Lin"gam\
(l[i^][ng]"g[a^]m), n. [Skr. li[.n]ga.]
The phallic symbol under which Siva is principally worshiped
in his character of the creative and reproductive power.
--Whitworth. E. Arnold.
[1913 Webster]