Reproducing or multiplying by splitting or dividing into smaller parts, as some organisms do instead of sexual reproduction.
From Latin 'fissus' (split) + 'parere' (to produce). This scientific term emerged in the 18th century to describe asexual reproduction in biology where organisms divide themselves.
Bacteria and some simple animals are fissiparous—they literally split themselves in half to make babies, which is why one bacterium can become a billion in just a few hours without needing a partner!
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