瘍 means “ulcer, tumor”

よう · you

Also: swelling, boil

Kun'yomi (Japanese reading)
かさ
On'yomi (Chinese reading)
ヨウ

JLPT N1 · Taught in secondary school · 14 strokes

The story

Sickness (疒) and 昜, the sun (日) rising high: a swelling that keeps on growing. 瘍 lives in two words, 潰瘍, an ulcer, and 腫瘍, a tumor, which the doctor will call either 良性, benign, or 悪性, malignant.

Used in 腫瘍 (shuyou, tumor), 潰瘍 (kaiyou, ulcer), and 胃潰瘍 (ikaiyou, stomach ulcer)

More from Sickness & Cures

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Readings from KANJIDIC2, © EDRDG, CC BY-SA.