Definition of "coagulate" [co•ag•u•late]

• To cause transformation of (a liquid or sol, for example) into or as if into a soft, semisolid, or solid mass. (verb-transitive)
• To become coagulated. (verb-intransitive)

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.

• "For tender, succulent results, egg dishes should be cooked only just to the temperature at which their proteins coagulate, which is always well below the boiling point, 212°F/100°C."
• "Particles that are much smaller than a micron in fact tend to "coagulate," i.e. cling together when they bump into one another, so sub-micron particles don't last long in the air."
• "I've read that oil in the ocean does coagulate in globules that are tough on the outside but the interiors are still wet with gooey oil and the globules when washed ashore spoil beaches just like an oil slick washing ashore."