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

Alternate \Al*ter"nate\ (?; 277), a. [L. alternatus, p. p. of
alternate, fr. alternus. See {Altern}, {Alter}.]
1. Being or succeeding by turns; one following the other in
succession of time or place; by turns first one and then
the other; hence, reciprocal.
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And bid alternate passions fall and rise. --Pope.
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2. Designating the members in a series, which regularly
intervene between the members of another series, as the
odd or even numbers of the numerals; every other; every
second; as, the alternate members 1, 3, 5, 7, etc.; read
every alternate line.
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3. (Bot.) Distributed, as leaves, singly at different heights
of the stem, and at equal intervals as respects angular
divergence. --Gray.
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{Alternate alligation}. See {Alligation}.

{Alternate angles} (Geom.), the internal and angles made by
two lines with a third, on opposite sides of it. It the
parallels AB, CD, are cut by the line EF, the angles AGH,
GHD, as also the angles BGH and GHC, are called alternate
angles.

{Alternate generation}. (Biol.) See under {Generation}.
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Alternate \Al"ter*nate\ (?; 277), v. t. [imp. & p. p.
{Alternated}; p. pr. & vb. n. {Alternating}.] [L. alternatus,
p. p. of alternare. See {Altern}.]
To perform by turns, or in succession; to cause to succeed by
turns; to interchange regularly.
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The most high God, in all things appertaining unto this
life, for sundry wise ends alternates the disposition
of good and evil. --Grew.
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Alternate \Al"ter*nate\, v. i.
1. To happen, succeed, or act by turns; to follow
reciprocally in place or time; -- followed by with; as,
the flood and ebb tides alternate with each other.
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Rage, shame, and grief alternate in his breast. --J.
Philips.
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Different species alternating with each other.
--Kirwan.
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2. To vary by turns; as, the land alternates between rocky
hills and sandy plains.
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Alternate \Al*ter"nate\ (?; 277), n.
1. That which alternates with something else; vicissitude.
[R.]
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Grateful alternates of substantial. --Prior.
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2. A substitute; one designated to take the place of another,
if necessary, in performing some duty.
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3. (Math.) A proportion derived from another proportion by
interchanging the means.
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