nanometre

Definition

An SI subunit of length equal to 10⁻⁹ metres.

Etymology

From nano- + metre.

Example Sentences

• "Holonyms: micrometre < millimetre < centimetre < decimetre < metre < kilometre < megametre < gigametre < terametre < petametre"
• "Meronym: picometre"
• "A nanometre is one billionth of a metre. A single atom is between a tenth to half a nanometre across; a million or more of them stacked on top of one another would equal the thickness of a piece of paper."