Viviparously

adv. [f. prec. + -LY².] In a viviparous manner; by viviparous reproduction.

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1822–7. Good, Study Med. (1829), I. 338. The latter are … succeeded … by hosts of the young insects produced viviparously; for … the aphis breeds both ways.

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1861. H. Macmillan, Footn. Page Nat., 133. The plant is propagated viviparously.

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1877. Huxley, Anat. Inv. Anim., vii. 447. Aphides kept in a warm room … have continued to propagate viviparously for four years.

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