1. the production of living organisms from other living organisms.

noun (used with a singular verb)

  1. genetic engineering.


  1. (functioning as singular) the branch of biology concerned with altering the genomes of living organisms


  1. the principle that a living organism must originate from a parent organism similar to itselfCompare abiogenesis

also bio-genesis, 1870, “theory that living organisms arise only from pre-existing living matter,” coined by English biologist T.H. Huxley (1825-1895) from Greek bios “life” (see bio-) + genesis (q.v.). Related: Biogenetic; biogenetical.


  1. The principle that life originates from preexisting life and not from nonliving material.
  2. biosynthesis

  1. Generation of living organisms from other living organisms.

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