tánn膽

gallbladder

gallbladder; guts; courage; bravery; strength; nerve; inner container; liner (of a thermos); bladder (of a ball); vacuum tube

anatomy

English Wiktionary, “膽” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E8%86%BD · confidence: High (Wiktionary, PH/Quanzhou/Jinjiang)