subindex
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sub·in·dex
(sŭb-ĭn′dĕks)n. pl. sub·in·di·ces (-dĭ-sēz′)
1. Mathematics A subscript.
2. pl. sub·in·dic·es or sub·in·dex·es An index of measurement based on relatively few variables, especially a trade index based on the performance of a particular group or type of stocks.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
subindex
(sʌbˈɪndɛks)n, pl -dices (-dɪˌsiːz) or -dexes
1. (Printing, Lithography & Bookbinding) another word for subscript2
2. (Library Science & Bibliography) US an index to a subcategory
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
sub•in•dex
(sʌbˈɪn dɛks)n., pl. -dex•es, -di•ces (-dəˌsiz)
1. an index to a part of a larger category.
2. subscript.
[1920–1925]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.