Lepidodendron \Lep`i*do*den"dron\ (-dr[o^]n), n. [NL., fr. Gr.
lepi`s -i`dos, a scale + de`ndron tree.] (Paleon.)
A genus of fossil trees of the Devonian and Carboniferous
ages, having the exterior marked with scars, mostly in
quincunx order, produced by the separation of the leafstalks.
[1913 Webster]