The Collaborative International Dictionary of English v.0.48:

Invert \In*vert"\, v. i. (Chem.)
   To undergo inversion, as sugar.
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The Collaborative International Dictionary of English v.0.48:

Invert \In"vert\, a. (Chem.)
   Subjected to the process of inversion; inverted; converted;
   as, invert sugar.
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   Invert sugar (Chem.), a variety of sugar, consisting of a
      mixture of dextrose and levulose, found naturally in
      fruits, and produced artificially by the inversion of cane
      sugar (sucrose); also, less properly, the grape sugar or
      dextrose obtained from starch. See Inversion,
      Dextrose, Levulose, and Sugar.
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The Collaborative International Dictionary of English v.0.48:

Invert \In"vert\, n. (Masonry)
   An inverted arch.
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The Collaborative International Dictionary of English v.0.48:

Invert \In*vert"\, v. t. [imp. & p. p. Inverted; p. pr. & vb.
   n. Inverting.] [L. invertere, inversum; pref. in- in +
   vertere to turn. See Verse.]
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   1. To turn over; to put upside down; to upset; to place in a
      contrary order or direction; to reverse; as, to invert a
      cup, the order of words, rules of justice, etc.
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            That doth invert the attest of eyes and ears,
            As if these organs had deceptious functions. --Shak.
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            Such reasoning falls like an inverted cone,
            Wanting its proper base to stand upon. --Cowper.
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   2. (Mus.) To change the position of; -- said of tones which
      form a chord, or parts which compose harmony.
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   3. To divert; to convert to a wrong use. [Obs.] --Knolles.
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   4. (Chem.) To convert; to reverse; to decompose by, or
      subject to, inversion. See Inversion, n., 10.
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WordNet (r) 3.0 (2006):

invert
    v 1: make an inversion (in a musical composition); "here the
         theme is inverted"
    2: reverse the position, order, relation, or condition of; "when
       forming a question, invert the subject and the verb" [syn:
       invert, reverse]
    3: turn inside out or upside down [syn: turn back, invert,
       reverse]

Moby Thesaurus II by Grady Ward, 1.0:

57 Moby Thesaurus words for "invert":
   auntie, bi-guy, bisexual, bull dyke, butch, catamite, change,
   chicken, convert, dyke, evert, fag, faggot, fairy, femme, flip,
   flit, fricatrice, fruit, gunsel, homo, homophile, homosexual,
   homosexualist, introvert, intussuscept, invaginate, inverse,
   lesbian, nance, pansy, pathic, pronate, punk, queen, queer,
   resupinate, reverse, revert, revolve, rotate, sapphist, supinate,
   transplace, transpose, tribade, turn, turn about, turn around,
   turn down, turn in, turn inside out, turn out, turn over,
   turn the scale, turn the tables, turn upside down