created sense approved 凹线/凹線 · āoxiàn · groove — "Initial import from upstream dictionary"
凹线 / 凹線
āoxiàn
groove
a recessed line or furrow; groove
凹 (literal) → 凹 · āo · concave 线 (literal) → 线/線 · xiàn · line (geometry)
Changed: simplified, traditional, gloss, definition, pinyin, variant pinyin, variants, separable parts, decomposition