Pterylosis definitions

Pterylosis

• (n.) The arrangement of feathers in definite areas.
Found on http://thinkexist.com/dictionary/meaning/pterylosis/

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Pterylosis

Pter`y·lo'sis noun [ New Latin , from New Latin & English pteryla .] (Zoology) The arrangement of feathers in definite areas.
Found on http://www.encyclo.co.uk/webster/P/189

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pterylosis

The arrangement of feather tracts and bare patches on a bird.
Found on https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter

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