臀肌

túnjī
  1. gluteal muscle
  2. gluteus
  3. buttocks

CEDICT

  1. (anatomy) gluteal muscle; glute (e.g. gluteus maximus, gluteus medius, or gluteus minimus)
  2. gluteal muscle; glute (e.g. gluteus maximus, gluteus medius, or gluteus minimus)

Wiktionary

Entry Composition

=1 臀 tún buttocks; hips; rump
=1 臀 tún old variant of 臀 tún
2 肌 jī (bound form) flesh; muscle

Related entries

屁股 pìgu
  1. buttocks
  2. bottom
  3. butt
  4. back part
我屁股痛。

My butt hurts.

Source: Tatoeba

窟臀 kūtún buttocks (dialect)
腚 dìng
  1. buttocks
  2. butt
髀 bì
  1. buttocks
  2. thigh
臀部 túnbù
  1. butt
  2. buttocks
腄 chuí
  1. callus on the hand or foot
  2. upper leg bone of horse or bird
  3. buttocks