nanometer

noun

nano·​me·​ter ˈna-nə-ˌmē-tər 

: one billionth of a meter

Examples of nanometer in a Sentence

Recent Examples on the Web

When pumped with a 940-nanometer Ti laser, the waveguides produced laser light at 1,030 nanometers. — Rupendra Brahambhatt, Interesting Engineering, 22 Aug. 2026

Assa paired that control with a wavelength of 2,910 nanometers, the point where water in skin absorbs energy most efficiently. — Lyssanoel Frater, USA Today, 17 Aug. 2026

Vortex structures At 416 nanometers, the solar surface is dominated by granules, the convection cells that carry heat from the interior. — Jacek Krywko, ArsTechnica, 7 Aug. 2026

These mRNA-lipid nanoparticles, or LNPs, are tiny spheres about 100 nanometers in diameter that protect mRNA from degradation and facilitate its delivery into target cells. — Li Li, The Conversation, 6 Aug. 2026

Word History

Etymology

International Scientific Vocabulary

First Known Use

1963, in the meaning defined above

Rhymes for nanometer

• amphitheater
• bolometer
• centimeter
• centimetre
• decimeter
• ergometer
• expositor
• gasometer
• gravimeter
• hexameter
• manometer
• milliliter

Kids Definition

nanometer

noun

nano·​meter

ˈnan-ə-ˌmēt-ər

: one billionth of a meter

Medical Definition

nanometer

noun

nano·​me·​ter

variants or chiefly British nanometre

ˈnan-ə-ˌmēt-ər 

: one billionth of a meter

—abbreviation nm