- The distinguishing or specific cells of a gland or organ, contained in and supported by the connective tissue framework, or stroma.
- The endoplasm of a protozoan cell.
- In the lung, consists of the gas-exchanging portion, excluding the radiographically visible blood vessels and bronchi.
[G. anything poured in beside, fr. parencheō, to pour in beside]
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Examples: glitazone, GI cocktail, etc.