REVERTING

(now rare) to turn back, or turn to the contrary; to reverse.

To throw back; to reflect; to reverberate.

To cause to return to a former condition.

(now rare) to return; to come back.

Example: "If they attack, we will revert to the bunker."

To return to the possession of.

Example: "When a book goes out of print, rights revert from the publisher to the author."

To cause (a property or rights) to return to the previous owner.

Example: "Sometimes a publisher will automatically revert rights back to an author once a book has gone out of print."

To return to a former practice, condition, belief, etc.

To return to an earlier or primitive type or state; to take on the traits or characters of an ancestral type.

To change back, as from a soluble to an insoluble state or the reverse.

Example: "Phosphoric acid in certain fertilizers reverts."

To take up again or return to a previous topic.

(in muslim usage, due to the belief that all people are born muslim) to convert to islam.

(originally india, now also singapore, malaysia, hong kong) to reply (to correspondence, for example).

Example: "Please revert before monday."

To treat (a series, such as y = a + bx + cx2 + ..., where one variable y is expressed in powers of a second variable x), so as to find the second variable x expressed in a series arranged in powers of y.