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n. 1. A disease of birds, characterized by a thick mucous discharge that forms a crust in the mouth and throat. 2. Slang A minor unspecified human ailment. [Middle English pippe, from Middle Dutch, phlegm, pip, from Medieval Latin *pippīta, alteration of Latin pītuīta; see peiə- in the Appendix of Indo-European roots.] |
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