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semivitreous

American  
[sem-ee-vi-tree-uhs, sem-ahy-] / ˌsɛm iˈvɪ tri əs, ˌsɛm aɪ- /

adjective

  1. partially vitreous.


semivitreous British  
/ ˌsɛmɪˈvɪtrɪəs /

adjective

  1. partially vitreous

  2. ceramics not wholly impervious to liquid

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of semivitreous

First recorded in 1775–85; semi- + vitreous