noun
Refers to the soft, fuzzy fibers on the surface of fabric, paper, or similar materials. Often used in contexts like fabric quality or lint.
このセーターは毛羽が多くて肌触りがいい。
This sweater has a lot of nap and feels nice against the skin.
洗濯すると毛羽が出ることがある。
Fluff may appear after washing.
noun
hachures; hatching
Technical term in cartography or drawing for short parallel lines used to indicate slopes or shading. Rare outside specialized contexts.
地図の毛羽は傾斜を表すのに使われる。
Hachures on a map are used to indicate slopes.
Compound of 毛 (ke, 'hair') and 羽 (ha, 'feather'), with rendaku voicing. The exact historical derivation is uncertain, but the combination suggests fine, hair-like fibers.