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  diphtheria diphthongize  
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   The American Heritage® Dictionary of the English Language: Fourth Edition.  2000.
 
diphthong
 
SYLLABICATION:diph·thong
PRONUNCIATION:  dfthông, -thng, dp-
NOUN: A complex speech sound or glide that begins with one vowel and gradually changes to another vowel within the same syllable, as (oi) in boil or () in fine.
ETYMOLOGY:Middle English diptonge, from Old French diptongue, from Late Latin diphthongus, from Greek diphthongos : di-, two; see di–1 + phthongos, sound.
OTHER FORMS:diph·thongal —ADJECTIVE
 
 
The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved.

CONTENTS · INDEX · ILLUSTRATIONS · BIBLIOGRAPHIC RECORD
  diphtheria diphthongize  
 
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