Anatomy and Medicine. Designating the layer of connective tissue located beneath a mucous membrane; cf. submucosa, n.

Anatomy and Medicine. Designating the layer of connective tissue located beneath a serous membrane. Cf. subserosa, n.

Medicine. Designating epithelium that contains (or consists of) a layer of very thin, flattened cells, and the cells themselves. Also squamous-celled…

Designating an epithelial cell containing contractile fibres, occurring esp. in the body wall of coelenterates and in certain mammalian exocrine…

Of or relating to the subserosa; located or occurring in the subserosa; designating the subserosa.

Designating a system of phagocytic cells distributed widely throughout the body, esp. in reticular tissue and sinusoids in the liver, spleen…

= reticuloendothelial, adj.; (see also quots. 1942, 1958).