femto-

English

Etymology

From Danish femten (“fifteen”).

Prefix

SI prefix

f	Previous:	atto-
	Next:	pico-

femto-

1. In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10⁻¹⁵. Symbol: f.

Antonyms

• peta-

Translations

prefix

• Bulgarian: фемто- (femto)
• Chinese:

  Mandarin: 飞- (fēi-)

• Czech: femto-
• French: femto- (fr)

• Galician: femto- (gl)
• Japanese: フェムト (ja) (femuto)
• Swedish: femto- (sv)

---

Czech

Prefix

femto-

1. femto- (SI prefix for 10^-15)

Derived terms

► Czech words prefixed with femto-

Further reading

• femto- in Kartotéka Novočeského lexikálního archivu

---

Danish

Etymology

Created in 1962, by the Danish physicist Henning Højgaard Jensen (1918–2001), from the number femten (“fifteen”).

Prefix

femto-

1. femto- (SI prefix for 10^-15)

---

Finnish

Prefix

femto-

1. femto-

---

French

Prefix

femto-

1. femto-

---

Italian

Prefix

femto-

1. femto-

---

Swedish

Prefix

femto-

1. femto-

Derived terms

Category Swedish words prefixed with femto- not found