whirl-bone

短语

词形变化

whirl-bones 复数

别名

whirlbone whirly-bone

释义与例句

n.
  1. 1.

    The patella, rotula, or kneecap.

    古体 医学
  2. 2.

    The head of the femur.

    古体 医学

词源

From Middle English whirlebon, whyrlebone, whorlbane (“hip or hip joint; the thighbone, femur; the rounded head of the femur; the kneecap, patella; a vertebra; ankle”), perhaps an alteration of Old English hweorfbān (“a joint, kneecap, vertebra”), equivalent to whirl + bone. Cognate with Scots whorlebone, whorle-bane (“hip bone, joint, vertebra”), German Wirbelbein (“vertebra”).

来源：wiktionary