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isogenous
isogloss
isogon
isogonal
isogonal line
isogone
isogonic
isogonic line
isograft
isogram
isohel
isohyet
isolani
isolate
isolated
isolated pawn
isolating
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isolex
i·so·lex [ ssə lèks ] (plural i·so·lex·es)


noun 
Definition:
 
boundary showing word use: a line on a language map that surrounds an area within which a particular word is used
[Early 20th century. <iso- + Greek lexis "word"]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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