animal tissue that constitutes the essential part of an organ as contrasted with e.g. connective tissue and blood vessels
the primary tissue of higher plants composed of thin-walled cells that remain capable of cell division even when mature; constitutes the greater part of leaves, roots, the pulp of fruits, and the pith of stems
例句
用作名词 (n.)
A rim of slightly darker thyroid parenchyma is seen at the left. 在左边可见模糊的甲状腺实质边缘。
Primary MFH may arise in the renal parenchyma or in the renal capsule. 原发性肾恶性纤维组织细胞瘤可发生于肾实质或肾包膜。