zeptogram en · NOUN
Etymology
Etymology tree Proto-Afroasiatic *sṗɣ? Proto-Semitic *šabʕ-bor.? Proto-Indo-European *septḿ̥ Proto-Hellenic *heptə́ Ancient Greek ἑπτᾰ́ (heptắ)der. English zepto- English gram English zeptogram From zepto- + gram.
Meanings
- An SI unit of mass equal to 10⁻²¹ grams. Symbol: zg
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| zeptograms | Number=Plur | lexicographic | |
| zeptogramme | UK, alternative | lexicographic |