“paragaster”的英文意思_释义_用法

单词

paragaster

释义

paragaster Zool.|pærəˈgæstə(r)|
[f. Gr. παρα- para-¹ ‘false’ + γαστήρ belly, stomach.]
The central or gastric cavity of a simple sponge. Hence paraˈgastral a., of or belonging to the paragaster.
1887Sollas in Encycl. Brit. XXII. 413/2 The simple paragaster of Ascetta may become complicated in a variety of ways.1888― in Challenger Rep. XXV. p. xiv, The recesses, known as flagellated chambers, communicate with the cavity of the sac (paragaster) each by a single wide mouth (apopyle), and with the exterior by a small pore (prosopyle).Ibid. p. xxvi, If endodermal, then the cavity of the vase forming the sponge must be paragastral.

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