To convert into or treat with asbestos; to make something asbestine or asbestos-like in form or properties.
From 'asbestos' or 'asbestine' plus the verb suffix '-ize' (meaning to cause to become or treat with), following standard patterns for creating verbs.
The verb 'asbestinize' is rarely used today, but it reflects an era when adding asbestos to materials was seen as improvement—it's one of those words we stopped using when we realized what we'd done was dangerous.
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