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The Collaborative International Dictionary of English v.0.48 (gcide)

Abortive \A*bor"tive\, a. [L. abortivus, fr. aboriri. See
{Abort}, v.]
1. Produced by abortion.as, an abortive child. [R.]
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2. Made from the skin of a still-born animal; as, abortive
vellum. [Obs.]
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3. Rendering fruitless or ineffectual. [Obs.] "Plunged in
that abortive gulf." --Milton.
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4. Coming to naught; failing in its effect; miscarrying;
fruitless; unsuccessful; as, an abortive attempt. "An
abortive enterprise." --Prescott.
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5. (Biol.) Imperfectly formed or developed; rudimentary;
sterile; as, an abortive organ, stamen, ovule, etc. AS
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6. (Med.)
(a) Causing abortion; as, abortive medicines. --Parr. AS
(b) Cutting short the period of an illness; as, abortive
treatment of typhoid fever.
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Abortive \A*bor"tive\, n.
1. That which is born or brought forth prematurely; an
abortion. [Obs.] --Shak.
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2. A fruitless effort or issue. [Obs.]
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3. (Med.) A medicine to which is attributed the property of
causing abortion; -- also called an {abortifacient}.
--Dunglison.
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