noun pes·su·lus \-ləs\

Definition of pessulus



  1. :  a bony or cartilaginous bar crossing the lower end of the windpipe of a bird dorsoventrally at its division into bronchi

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Origin and Etymology of pessulus

Latin, bolt, modification of Greek passalos peg, stake; akin to Greek pēgnynai to fix, fasten together — more at pact

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