无毛的,光洁的
Glabrous \Gla"brous\, a. [L. glaber; cf. Gr. ? hollow, smooth, ? to hollow.] Smooth; having a surface without hairs or any unevenness.
glabrous
adj : having no hair or similar growth; smooth; "glabrous stems";
"glabrous leaves"; "a glabrous scalp"