Definition of "sea change" []

• A change caused by the sea: "Of his bones are coral made:/Those are pearls that were his eyes:/Nothing of him that doth fade,/But doth suffer a sea change” ( Shakespeare). (noun)
• A marked transformation: "The script suffered considerable sea changes, particularly in structure” ( Harold Pinter). (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Essentially a moral man, his rigid New England morality has suffered a sea change and developed into the morality of the master-man of affairs, equally rigid, equally uncompromising, but essentially Jesuitical in that he believes in doing wrong that right may come of it."
• "Although Dr. Remen was also the only woman so honored, I couldn’t help noticing that the majority of people in the room championing this sea change in medical consciousness were themselves women."