inversion vs rollback

inversion

noun
  • A section of a roller coaster where passengers are temporarily turned upside down. 

  • The position of a chord which has a note other than the root as its bass note. 

  • A situation where air temperature increases with altitude (the ground being colder than the surrounding air). 

  • An operation on a group, analogous to negation. 

  • The reversal of an interval; the move of one pitch in an interval up or down an octave. 

  • The action of inverting. 

  • The flipping of a melody or contrapuntal line so that high notes become low and vice versa; the reversal of a pitch contour. 

  • Deviation from standard word order by putting the predicate before the subject. It takes place in questions with auxiliary verbs and in normal, affirmative clauses beginning with a negative particle, for the purpose of emphasis. 

  • A segment of DNA in the context of a chromosome that is reversed in orientation relative to a reference karyotype or genome. 

  • The act of being in an inverted state; being upside down, inside out, or in a reverse sequence. 

rollback

noun
  • The situation where a rollercoaster fails to reach the top of a hill and instead rolls backward. 

  • A withdrawal of military forces. 

  • An operation which returns a database, or group of records in a database, to a previous state (normally to the previous commit point). 

  • A form of flatbed truck adapted or designed specifically as a tow truck or for transporting other vehicles. 

  • An uncommanded reduction in the thrust of a jet engine. 

  • A return to a prior state by undoing some operation, especially of policy or price changes. 

  • The strategy of forcing a change in the major policies of a state, usually by replacing its ruling regime, or by totally annihilating an enemy's armed forces and occupying the country, as was done in World War II to Italy, Germany, and Japan. 

verb
  • To return to the previous state. 

  • To reduce thrust without having been commanded to do so. 

How often have the words inversion and rollback occurred in a corpus of books? (source: Google Ngram Viewer )