Entry 2 senses · 2 variants Webster, 1913 Striate · Stri·ate · IPA /ˈstɹaɪ.ət/ v. t. a. 01 v. t. To mark with striaae. imp. & p. p. Striated; p. pr. & vb. n. Striating 1. To mark with striaae. 02 a. Marked with striaae, or fine grooves, or lines of color; showing narrow structural bands or lines; as, a striated crystal; striated muscula… 1. Marked with striaae, or fine grooves, or lines of color; showing narrow structural bands or lines; as, a striated crystal; striated muscular fiber.