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eruptional

 - 4 dictionary results

e⋅rup⋅tion

  [i-ruhp-shuhn]
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–noun
1. an issuing forth suddenly and violently; outburst; outbreak.
2. Geology. the ejection of molten rock, steam, etc., as from a volcano or geyser.
3. something that is erupted or ejected, as molten rock, volcanic ash, or steam.
4. Pathology.
a. the breaking out of a rash or the like.
b. a rash or exanthem.
Origin:
1375–1425; late ME < L ēruptiōn- (s. of ēruptiō). See erupt, -ion

Related forms:
e⋅rup⋅tion⋅al, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Word Origin & History

eruption 
1555, from L. eruptionem (nom. eruptio) "a breaking out," from stem of erumpere "break out, burst forth," from ex- "out" + rumpere "to break, rupture" (see rupture).
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: erup·tion
Pronunciation: i-'r&p-sh&n
Function: noun
1 : an act, process, or instance of erupting eruptionof the tooth from the gum>; specifically : the breaking out of an exanthem or enanthem on the skin or mucous membrane (as in measles)
2 : something produced byan act or process of erupting: as a : the condition of the skin or mucous membrane caused by erupting b : one of the lesions (as a pustule) constituting this condition
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

eruption e·rup·tion (ĭ-rŭp'shən)
n.

  1. An appearance of a rash or blemish on the skin.

  2. Such a rash or blemish.

  3. The emergence of a tooth through the gums.

e·rup'tive (-tĭv) adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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