Biforous \Bif"o*rous\, a. [L. biforis having two doors; bis twice, two + foris door.] See {Biforate}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • biforous — bi·fo·rous …   English syllables

  • biforous — ˈbīfərəs, ˈbif adjective Etymology: Latin biforus having two doors, from bi bi (I) + forus (from fores door) more at door : biforate …   Useful english dictionary

  • biforous spiracle — (ARTHROPODA: Insecta) An immature s spiracle having two entrances (air tubes); annular biforous spiracles …   Dictionary of invertebrate zoology

  • annular spiracle — (ARTHROPODA: Insecta) 1. In immature Lepidoptera and Hymenoptera, simple, ring like spiracles with a single opening with no accessory chambers. 2. In other immature insects, may be biforous, having two small or large accessory or secondary… …   Dictionary of invertebrate zoology

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