noun
Technical term in biochemistry for the molecule upon which an enzyme acts.
酵素は特定の基質にのみ作用する。
Enzymes act only on specific substrates.
noun
In biology, refers to the material or tissue in which more specialized structures are embedded; also used for the stroma of chloroplasts or connective tissue.
細胞外基質は組織の構造を支える。
The extracellular matrix supports tissue structure.