zepto-

Etymology

Greek (h)epta- (seven), for the seventh order of 10⁻³. The final o conforms to the finals vowel of the SI series from micro- downwards; the letter z was added, as a start in a series of terms running backwards through the alphabet.

Pronunciation

• (Received Pronunciation) IPA^(key): /ˈzɛp.təʊ/
• (General American) IPA^(key): /ˈzɛp.toʊ/

• Audio (Southern England):

  (file)

Prefix

zepto-

1. In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10⁻²¹ (short scale sextillionth or long scale trilliardth). Symbol: z

Anagrams

• Tzepo

Etymology

From Ancient Greek ἑπτά (heptá, “seven”), for the seventh order of 10⁻³. The final o conforms to the finals vowel of the SI series from micro- downwards; the letter z was added, as a start in a series of terms running backwards through the alphabet.

Pronunciation

• Audio:

  (file)

Prefix

zepto-

1. zepto-