kraakbeen — meaning in English

English meaning

cartilage noun A tough, flexible connective tissue found in joints, the ear, nose, and other parts of the body.
gristle noun Tough cartilage found in meat.

kraakbeen is used for these senses in English:

cartilage (skeleton, uncountable) A usually translucent and somewhat elastic, dense, nonvascular connective tissue found in various forms in the larynx and respiratory tract, in structures such as the external ear, and in the articulating surfaces of joints. It composes most of the skeleton of vertebrate embryos, being replaced by bone during ossification in the higher vertebrates.
gristle Cartilage; now especially: cartilage present, as a tough substance, in meat.