mesochondrium

me·so·chon·dri·um -'kän-drē-əm n, pl -dria -drē-ə the matrix of cartilage

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meso·chon·dri·um (mez″o-) (me″zo-konґdre-əm) [meso- + Gr. chondros cartilage] the matrix in which are embedded the cellular elements of hyaline cartilage.