| dipnoi | <zoology> A group of ganoid fishes, including the living genera Ceratodus and Lepidosiren, which present the closest approximation to the Amphibia. The air bladder acts as a lung, and the nostrils open inside the mouth. See Ceratodus, and Illustration in Appendix. Origin: NL, fr. Gr. With two breathing apertures; = twice + breath. Source: Websters Dictionary (01 Mar 1998) |
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