1.  striation(n = noun.shape) stria - any of a number of tiny parallel grooves such as: the scratches left by a glacier on rocks or the streaks or ridges in muscle tissue; Array
is a kind of channel, groove
Derived form verb striate₁

2.  striation(n = noun.attribute) band, banding, stria - a stripe or stripes of contrasting color; "chromosomes exhibit characteristic bands"; "the black and yellow banding of bees and wasps"
is a kind of bar, streak, stripe
has particulars: collar, stretch mark
Derived form verb striate₁

1.  The quality or condition of being striated. [1913 Webster]

2.  A stria; as, the striations on a shell. [1913 Webster]