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单词 agastric
释义 agastric, a. Zool.|əˈgæstrɪk|
[f. Gr.priv. + γαστήρ, γαστρ-ός belly + -ic.]
Having no distinct alimentary canal.
1836Todd Cycl. Anat. & Phys. I. 43/1 Such pulmograda as..were formerly supposed to be agastric.1867J. Hogg Microsc. ii. ii. 371 In..agastric Infusoria only solid alimentary particles are taken as food.
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