prefix

Synonyms

atto-

exa-

femto-

giga-

kilo-

mega-

micro-

milli-

peta-

pico-

tera-

yocto-

yotta-

zepto

zetta-

1. <unit> An SI prefix used to multiply the value of an SI unit by some power of ten.

2. <programming, mathematics> In mathematics or programming, a prefix operator is one that is written before its operand. In a programming language using prefix notation, all operators are prefix operators.