Overturn

v. turn over; overthrow; reverse the power of (as of a decision); subdue; defeat

Noun
1. the act of upsetting something; "he was badly bruised by the upset of his sled at a high speed"
(synonym) upset, turnover
(hypernym) inversion, upending
(derivation) tip over, turn over, upset, knock over, bowl over, tump over
2. an improbable and unexpected victory; "the biggest upset since David beat Goliath"
(synonym) upset
(hypernym) success
Verb
1. turn from an upright or normal position; "The big vase overturned"; "The canoe tumped over"
(synonym) turn over, tip over, tump over
(hypernym) turn
(hyponym) capsize, turtle, turn turtle
(verb-group) tip over, turn over, upset, knock over, bowl over, tump over
(derivation) upset, turnover
2. cause to overturn from an upright or normal position; "The cat knocked over the flower vase"; "the clumsy customer turned over the vase"; "he tumped over his beer"
(synonym) tip over, turn over, upset, knock over, bowl over, tump over
(hypernym) move, displace
(cause) turn over, tip over, tump over
(verb-group) turn over, tip over, tump over
(derivation) upset, turnover
3. rule against; "The Republicans were overruled when the House voted on the bill"
(synonym) overrule, override, overthrow, reverse
(hypernym) rule, decree
4. cause the downfall of; of rulers; "The Czar was overthrown"; "subvert the ruling class"
(synonym) overthrow, subvert, bring down
(hypernym) depose, force out
(hyponym) revolutionize
5. annul by recalling or rescinding; "He revoked the ban on smoking"; "lift an embargo"; "vacate a death sentence"
(synonym) revoke, annul, lift, countermand, reverse, repeal, rescind, vacate
(hypernym) cancel, strike down
(hyponym) renege, renege on, renegue on, go back on
6. change radically; "E-mail revolutionized communication in academe"
(synonym) revolutionize, revolutionise
(hypernym) change, alter, modify

(v. t.)
To turn or throw from a basis, foundation, or position; to overset; as, to overturn a carriage or a building.
  

(v. t.)
To subvert; to destroy; to overthrow.
  

(v. t.)
To overpower; to conquer.
  

(n.)
The act off overturning, or the state of being overturned or subverted; overthrow; as, an overturn of parties.
  

One complete cycle of top to bottom mixing of previously stratified water masses. This phenomenon may occur in spring or fall, or after storms, and results in uniformity of chemical and physical properties of water at all depths.

    turnover