veining

Noun

 * 1) An arrangement of veins or veinlike markings.
 * 2) * 1890,, “”, in , New York: Lovell, Corvell & Co., 1891, p. 32,
 * He looked at the forest on the bank of the stream, saw the individual trees, the leaves and the veining of each leaf—saw the very insects upon them, the locusts, the brilliant-bodied flies, the gray spiders stretching their webs from twig to twig.