Definify.com

Webster 1913 Edition

Subindex

Sub-in′dex

,

Noun.

;

pl.

Subindices

.

(Math.)

A number or mark placed opposite the lower part of a letter or symbol to distinguish the symbol;

thus, a

0

, b

1

, c

2

, x

n

, have 0, 1, 2, and n as

subindices

.