Definition from Wiktionary, the free dictionary
Jump to: navigation, search



From Middle French invertir



invert (third-person singular simple present inverts, present participle inverting, simple past and past participle inverted)

  1. (transitive) To turn (something) upside down or inside out; to place in a contrary order or direction.
    to invert a cup, the order of words, rules of justice, etc.
    • Shakespeare
      That doth invert the attest of eyes and ears, / As if these organs had deceptious functions.
    • Cowper
      Such reasoning falls like an inverted cone, / Wanting its proper base to stand upon.
  2. (transitive, music) To move (the root note of a chord) up or down an octave, resulting in a change in pitch.
  3. (chemistry, intransitive) To undergo inversion, as sugar.
  4. To divert; to convert to a wrong use.
    (Can we find and add a quotation of Knolles to this entry?)

Derived terms[edit]

Related terms[edit]


See also[edit]

Teacup clipart.svg The Tea room(+) is discussing this entry at the moment.
Please come along and share your opinions on this and the other topics being discussed there. The user who started this topic summarised the issue as: “what is the difference?”


invert (plural inverts)

  1. (archaic) A homosexual person.
  2. (architecture) An inverted arch (as in a sewer). *
  3. The base of a tunnel on which the road or railway may be laid and used when construction is through unstable ground. It may be flat or form a continuous curve with the tunnel arch. [1]
  4. (civil engineering) The lowest point inside a pipe at a certain point.
  5. (civil engineering) An elevation of a pipe at a certain point along the pipe.
  6. A skateboarding trick where the skater grabs the board and plants a hand on the coping so as to balance upside-down on the lip of a ramp.
  7. (biology, informal) invertebrate



invert (not comparable)

  1. (chemistry) Subjected to the process of inversion; inverted; converted.
    invert sugar


  1. ^ invert (in'‑vert) The floor or bottom of the internal cross section of a closed conduit, such as an aqueduct, tunnel, or drain - The term originally referred to the inverted arch used to form the bottom of a masonry‑lined sewer or tunnel (Jackson, 1997) Wilson, W.E., Moore, J.E., (2003) Glossary of Hydrology, Berlin: Springer