also: はんがお
noun
half the face; one side of the face
Refers to one side of the face, often in contexts like makeup, portraits, or medical descriptions. Compare with 半面 (はんめん), which can also mean 'one side' more broadly.
See also: 半面 (はんめん)
彼女は半顔だけメイクをして、ビフォーアフターを見せた。
She put makeup on only half her face and showed the before and after.
半顔が麻痺してしまった。
Half of my face became paralyzed.
半面 can mean 'half the face' but also 'one side' of an object or issue. 半顔 is specifically about the face.
Compound of 半 (half) and 顔 (face). The reading はんがん is the standard on'yomi combination; はんがお mixes on and kun readings and is less common.