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)
3. To divert; to convert to a wrong use.
(Science: chemistry) to undergo inversion, as sugar. Subjected to the process of inversion; inverted; converted; as, invert sugar. Invert sugar, 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.
Origin: L. Invertere, inversum; pref. In- in _ vertere to turn.