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nano

1 American  
[nan-oh, ney-noh] / ˈnæn oʊ, ˈneɪ noʊ /

noun

  1. Informal. nanotechnology.


nano- 2 American  
especially before a vowel, nanno-;
  1. a combining form with the meaning “very small, minute,” used in the formation of compound words (nanoplankton ); in the names of units of measure it has the specific sense “one billionth” (10-9 ).

    nanomole; nanosecond.


nano- British  

combining form

  1.  n.  denoting 10 –9

    nanosecond

  2. indicating extreme smallness

    nanoplankton

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

nano– Scientific  
  1. A prefix that means:

  2. Very small or at a microscopic level, as in nanotube. In this sense, this prefix is sometimes spelled nanno–, as in nannoplankton.

  3. One billionth, as in nanosecond, one billionth of a second.


nano- Cultural  
  1. A prefix meaning one billionth.


Usage

What does nano- mean? Nano- is a combining form used like a prefix meaning “very small, minute.” In names of units of measure, it means "one billionth." It is often used in scientific and technical terms.Nano- comes from Greek nânos or nánnos, meaning “dwarf.”What are variants of nano-?In some rare instances, nano- is spelled with a double -n-, becoming nanno-, as in nannofossil.When combined with words or word elements that begin with a vowel, nano- becomes nan-, as in nanoid. Want to know more? Read our Words That Use nan- article.

Etymology

Origin of nano1

By shortening

Origin of nano-2

Combining form representing Greek nânos, nánnos dwarf

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Part of the success of Google’s Gemini app has been attributed to the popularity of its Nano Banana image-generator model last year.

From Barron's

It’s agnostic about whether it woos you with image-maker Nano Banana or a better way to search through your Google Drive.

From Slate

The research was published in ACS Nano, an international journal focused on nanotechnology.

From Science Daily

Mente said Revolve was testing tools like Google’s Nano Banana.

From The Wall Street Journal

Then, in August, the debut of image-generation tool Nano Banana launched Gemini usage on its fastest trajectory to date, in part by appealing to younger users.

From The Wall Street Journal