Definition of "sublimation" [sub•li•ma•tion]

• The act or process of sublimating. (noun)
• Something that has been sublimated. (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.

• "Although the term sublimation pertains to the conversion of both solid directly to gas and its reverse… gas directly to solid, some people call the latter process deposition."
• "“To chemists, sublimation is the process by which matter changes from a solid state to a vapor without first melting."
• "Its sublimation is slow, and can be reduced; I cannot comment on specifics, but Wikibooks notes the following: "But if it must be stored, it is recommended that it is stored under water and in a container without a cap with threads, as opening it could result in an explosion from crystalized [sic] acetone peroxide.""