What is "inverting"

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.]

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.

   That doth invert the attest of eyes and ears, As if these organs had deceptious functions.
   --Shak.

   Such reasoning falls like an inverted cone, Wanting its proper base to stand upon.
   --Cowper.

2. (Mus.) To change the position of; -- said of tones which form a chord, or parts which compose harmony.

3. To divert; to convert to a wrong use. [Obs.]
   --Knolles.

4. (Chem.) To convert; to reverse; to decompose by, or subject to, inversion. See Inversion, n., 10.

vb. (present participle of invert English)