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[rey-diks] /ˈreɪ dɪks/
noun, plural radices
[rad-uh-seez, rey-duh-] /ˈræd əˌsiz, ˈreɪ də-/ (Show IPA),
Mathematics. a number taken as the base of a system of numbers, logarithms, or the like.
Anatomy, Botany. a root; radicle.
Origin of radix
1565-75; < Latin rādīx root (cf. race3, radical, ramus); akin to Greek rhíza root, rhā́dīx branch, frond; see root1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for radix


noun (pl) -dices (-dɪˌsiːz), -dixes
(maths) any number that is the base of a number system or of a system of logarithms: 10 is the radix of the decimal system
(biology) the root or point of origin of a part or organ
(linguistics) a less common word for root1 (sense 9)
Word Origin
C16: from Latin rādīx root; compare Greek rhadix small branch, rhiza root
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
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radix in Medicine

radix ra·dix (rā'dĭks)
n. pl. ra·dix·es or rad·i·ces (rād'ĭ-sēz', rā'dĭ-)
The primary or beginning portion of a part or organ, as of a nerve at its origin from the brainstem or spinal cord.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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radix in Science
Plural radices (rād'ĭ-sēz', rā'dĭ-) or radixes
  1. Biology The primary or beginning portion of a part or organ, as of a nerve at its origin from the brainstem or spinal cord.

  2. Mathematics The base of a system of numbers, such as 2 in the binary system and 10 in the decimal system.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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radix in Technology

The ratio, R, between the weights of adjacent digits in positional representation of numbers. The right-most digit has weight one, the digit to its left has weight R, the next R^2, R^3, etc. The radix also determines the set of digits which is zero to R-1. E.g. decimal (radix ten) uses 0-9 and each digit is worth ten times as much as you move left along the number.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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