phototransistor

noun
pho·​to·​tran·​sis·​tor | \ ˌfō-tō-tran-ˈzi-stər How to pronounce phototransistor (audio) , -tran(t)-ˈsi-\

Definition of phototransistor

: a photoconductive semiconductor device used especially as a photodetector

Examples of phototransistor in a Sentence

Recent Examples on the Web

The capsule has tiny phototransistors that send the light information to a microprocessor, which broadcasts it wirelessly to a computer or smartphone. Sean Rossman, USA TODAY, "Researchers are working on an electronic pill you can take to see if you're sick or not," 25 May 2018 Not much, but enough for a custom phototransistor to capture it and relay that information to a microprocessor—which sent the signal to an Android app developed by an undergraduate engineering student. Megan Molteni, WIRED, "This Digital Pill Prototype Uses Bacteria to Sense Stomach Bleeding," 24 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'phototransistor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of phototransistor

1950, in the meaning defined above

Keep scrolling for more

Learn More about phototransistor

Statistics for phototransistor

Look-up Popularity

Time Traveler for phototransistor

The first known use of phototransistor was in 1950

See more words from the same year

Comments on phototransistor

What made you want to look up phototransistor? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to make a temporary encampment

Get Word of the Day daily email!

Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!