Englishfor English speakers
biological
Adjective
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If something is biological, it is related to biology or life.
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Your biological parents are related to you by blood.
amplification
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noun
(= elaboration)
addition of extra material or illustration or clarifying detail
a few remarks added in amplification and defense
an elaboration of the sketch followed
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noun
(electronics) the act of increasing voltage or power or current
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noun
the amount of increase in signal power or voltage or current expressed as the ratio of output to input