The Collaborative International Dictionary of English v.0.48:

Lineate \Lin"e*ate\ (l[i^]n"[-e]*[asl]t), Lineated \Lin"e*a`ted\
   (l[i^]n"[-e]*[=a]`t[e^]d), a. [L. lineatus, p. p. of lineare
   to reduce to a straight line, fr. linea line.]
   1. (Zool.) Marked with lines.
      [1913 Webster]

   2. (Bot.) Marked longitudinally with depressed parallel
      lines; as, a lineate leaf.
      [1913 Webster]