QUINTILLIONTH

Pronunciation (US):

(GB):

 Dictionary entry overview: What does quintillionth mean? 

• QUINTILLIONTH (noun)
  The noun QUINTILLIONTH has 1 sense:

1. one part in a quintillion equal parts

  Familiarity information: QUINTILLIONTH used as a noun is very rare.

• QUINTILLIONTH (adjective)
  The adjective QUINTILLIONTH has 1 sense:

1. the ordinal number of one quintillion in counting order

  Familiarity information: QUINTILLIONTH used as an adjective is very rare.

 Dictionary entry details 

• QUINTILLIONTH (noun)

Sense 1

Meaning:

One part in a quintillion equal parts

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

one-quintillionth; quintillionth

Hypernyms ("quintillionth" is a kind of...):

common fraction; simple fraction (the quotient of two integers)

• QUINTILLIONTH (adjective)

Sense 1

Meaning:

The ordinal number of one quintillion in counting order

Similar:

ordinal (being or denoting a numerical order in a series)

 Context examples 

The metric unit of mass equal to one a quintillionth of a gram (10E-18 gram).

(Attogram, NCI Thesaurus)

A metric unit of length equal to one quintillionth of a meter (10E-18 meter ).

(Attometer, NCI Thesaurus)

A unit of amount of substance equal to one quintillionth of a mole (10E-18 mole).

(Attomole, NCI Thesaurus)

A unit of concentration (molarity unit) equal to one quintillionth of a mole (10E-18 mole) of solute in one liter of solution.

(Attomole per Liter, NCI Thesaurus)

A unit of volume equal to one quintillionth of a liter (10E-18 liter) or one cubic micrometer.

(Attoliter, NCI Thesaurus)

A unit of radioactivity defined as 3.7E-8 atomic disintegrations or other nuclear transformations per second or one quintillionth of curie (10E-18 curie).

(Attocurie, NCI Thesaurus)

A prefix indicating a quantity of a quintillionth, 10E-18.

(Atto, NCI Thesaurus)