刺し毛もう

noun

stinging hair

Refers to the specialized hollow hairs on plants like nettles or on certain caterpillars that inject irritants when touched.

• イラクサの刺し毛もうに触ふれると、皮ひ膚ふがかぶれることがある。

  Touching the stinging hairs of a nettle can cause skin irritation.