a. 1. Having a grain; divided into small particles or grains; showing the grain; hence, rough. [ 1913 Webster ]
2. Dyed in grain; ingrained. [ 1913 Webster ]
Persons lightly dipped, not grained, in generous honesty, are but pale in goodness. Sir T. Browne. [ 1913 Webster ]
3. Painted or stained in imitation of the grain of wood, marble, etc. [ 1913 Webster ]
4. (Bot.) Having tubercles or grainlike processes, as the petals or sepals of some flowers. [ 1913 Webster ]