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Prefixes for measurement: Nano- through giga-

Word List with 19 words
By Dictionary.com

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Words in This List

atto

a combining form that enters into compounds denoting a unit one-quintillionth (10âˆ’18) the size of the unit named by the stem.

centi

a combining form meaning "hundredth" or "hundred," used in the formation of compound words:

deca

a combining form meaning "ten," used in the formation of compound words:

deci

a combining form meaning "tenth," used in words denoting units of the metric system (deciliter); on this model, extended to other systems (decibel).

exa

a combining form used in the names of units of measure equal to one quintillion (1018) of a given base unit:

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femto

a combining form used in the names of units of measurement which are 10âˆ’15 (one quadrillionth) smaller than the unit denoted by the base word.

giga

a combining form meaning "billion," used in the formation of compound words:

hecto

a combining form meaning "hundred," used in the formation of compound words:

kilo

a Greek combining form meaning "thousand," introduced from French in the nomenclature of the metric system (kiloliter); on this model, used in the formation of compound words in other scientific measurements (kilowatt).

megabit

(loosely) one million bits.

micro

a combining form with the meanings "small" (microcosm; microgamete), "very small in comparison with others of its kind" (microcassette; microlith), "too small to be seen by the unaided eye" (microfossil; microorganism), "dealing with extremely minute orga

milli

a combining form meaning "thousand" (millipede): in the metric system, used in the names of units equal to one thousandth of the given base unit (millimeter).

nano

a combining form with the meaning "very small, minute," used in the formation of compound words (nanoplankton); in the names of units of measure it has the specific sense "one billionth" (10-9):

peta

a combining form used in the names of units of measure equal to one quadrillion (1015) of a given base unit:

pico

a combining form meaning "one trillionth" (10âˆ’12):

tera

a combining form used in the names of units of measure equal to one trillion of a given base unit:

yottahertz

one septillion (1024) hertz.

zepto

a combining form meaning "one sextillionth" (10-21).

zettahertz

one sextillion (1021) hertz.