Standard Lemma guide

nanogram

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • CMU ARPABET: N AA1 N OW0 G R AE0 M Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
  • CMU ARPABET 2: N AE1 N OW0 G R AE0 M Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

An SI unit of mass equal to 10−9 grams. Symbol: ng

Definition source: English Wiktionary via Wiktextract

Topics: metrology

Examples

  • Holonyms: microgram < milligram < gram < kilogram < megagram < gigagram
  • Meronym: picogram

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

one billionth (1/1,000,000,000) gram

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: ng

Antonyms: none provided

Broader terms: metric weight unit, weight unit

History

Etymology

Etymology tree Ancient Greek νᾶνος (nânos)bor. Latin nānusbor. English nano- English gram English nanogram From nano- + gram.

Across languages

Translations

5 source translations are retained for this English entry.

  • French: nanogramme — Translations
  • Italian: nanogrammo — Translations
  • Spanish: nanogramo — Translations
  • Thai: นาโนกรัม — Translations
  • Vietnamese: nanôgam — Translations