cartilage
US /ˈkɑːr.t̬əl.ɪdʒ/
UK /ˈkɑːr.t̬əl.ɪdʒ/

1.
chrząstka
firm, whitish, flexible 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 is more widespread in the embryo and young of vertebrates, being replaced by bone during development.
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The doctor explained that the injury affected the cartilage in her knee.
Lekarz wyjaśnił, że uraz dotknął chrząstki w jej kolanie.
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Ears and noses are made of cartilage.
Uszy i nosy są zbudowane z chrząstki.