stroma
/ˈstrəʊmə/noun
(pl. stromata /-mətə/)
1
- mass noun Anatomy & Biology the supportive tissue of an epithelial organ, tumour, gonad, etc., consisting of connective tissues and blood vessels【剖, 生】（上皮器官、肿瘤、性腺等的）基质; 间质。
1.1
- the spongy framework of protein fibres in a red blood cell or platelet（红血球或血小板）基质。
1.2
- Botany the matrix of a chloroplast, in which the grana are embedded【植】（叶绿体）基质。
2
- Botany a cushion-like mass of fungal tissue, having spore-bearing structures either embedded in it or on its surface【植】子座。
派生词
stromal
adjective （【主剖】）stromatic
adjective （【主植】）词源
mid 19th cent.: modern Latin, via late Latin from Greek strōma 'coverlet'.