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

One pulse was redder, centered around 929 nanometers, while the other was bluer, centered around 720 nanometers. — Rupendra Brahambhatt, Interesting Engineering, 3 Oct. 2026

The typical size of quantum objects is a nanometer, or one-billionth of a meter. — Sophya Garashchuk, The Conversation, 1 Oct. 2026

The slim, cordless device emits red and near-infrared light at wavelengths ranging from 625 to 850 nanometers to support collagen production and, with consistent use, help soften the look of fine lines, dullness, and loss of firmness. — Christa Joanna Lee, Allure, 29 Sep. 2026

Before buying, confirm the device lists wavelengths in the 630-to-850-nanometer range and specifies power output. — Hanna Wickes, Kansas City Star, 28 Sep. 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