To remove something from an embedded position; to extract or pull out from a bed or embedded state.
From dis- (removal) + embed (em- + bed). Embed is a relatively modern word that came into common use in the 20th century, particularly in computing and journalism.
Journalists talk about 'embedded reporters' in war zones, so to 'disembed' one means to remove them from that position—it's become especially relevant in modern military operations!
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