Definition of stroma
1a : a compact mass of fungal hyphae producing perithecia or pycnidiab : the colorless proteinaceous matrix of a chloroplast in which the chlorophyll-containing lamellae are embedded
2a : the supporting framework of an animal organ typically consisting of connective tissueb : the spongy protoplasmic framework of some cells (such as a red blood cell)
stromalplay \-məl\ adjective
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