striated

adj. marked with thin lines; marked with narrow grooves or channels

v. mark with thin lines; mark with narrow grooves or channels

Bodybuilding In bodybuilding, striations are the tiny grooves of muscle across major muscle groups characteristic of a well-developed body. Chest striations are expected at low level competition, as they are indicative of muscularity and low body fat, whereas a "Christmas tree" in the lower back and striations in the glutes are expected at top level competition.
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Verb
1. mark with striae or striations
(hypernym) mark
(derivation) stria, striation
Adjective
1. marked with stria or striations
(pertainym) stria, striation

(imp. & p. p.)
of Striate
  

(a.)
Marked with striaae, or fine grooves, or lines of color; showing narrow structural bands or lines; as, a striated crystal; striated muscular fiber.
  

Synonyms and related words:
banded, barred, brinded, brindle, brindled, canaliculate, canaliculated, chamfered, channeled, corduroy, corduroyed, corrugate, corrugated, costate, crimped, cut, dadoed, engraved, fluted, furrowed, gashed, goffered, gouged, grooved, incised, listed, marbled, marbleized, pleated, rabbeted, ribbed, rifled, rutted, rutty, scored, scratched, slit, streaked, streaky, striatal, striate, strigate, strigose, striolate, striped, stripy, sulcate, sulcated, tabby, troughed, veined, watered, wrinkled