SYN: greater omentum. [L. pileum or p., a felt cap]
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pi·le·us 'pī-lē-əs n, pl pi·lei -lē-.ī the convex, concave, or flattened spore-bearing structure of some basidiomycetous fungi that is attached to the top of the stem and typically is expanded with gills or pores on the underside called also cap
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pi·le·us (piґle-əs) [L. “a close-fitting felt capâ€] caul.Medical dictionary. 2011.