The process of making something related to, characteristic of, or suitable for birds.
From Latin 'avianus' (relating to birds) plus the suffix '-ization' (process of making). The Latin 'avianus' comes from 'avis' (bird), one of the most ancient Indo-European words for animals.
This technical term shows up in biology when researchers modify viruses or bacteria to adapt them to bird hosts, which is how scientists study avian flu—they're literally 'avianizing' pathogens to understand bird diseases.
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