WordNet-Online
Free dictionary and thesaurus of English. Definitions, synonyms, antonyms and more...
Hint: double-click any word to get it searched!

	Enter your search terms Submit search form
	Web www.wordnet-online.com

Definitions from WordNet

Definitions from the Web

Doppler

Noun

1. Physics: The change in frequency or wavelength of a wave for an observer moving relative to its source.

Sample Sentence: The Doppler effect is responsible for the change in pitch of an ambulance siren as it passes by.

Noun

2. Medicine: A handheld device used to detect and measure the heartbeat of a fetus during pregnancy.

Sample Sentence: The doctor used a Doppler to monitor the baby's heart rate during the prenatal checkup.

Adjective

1. Popular: A popular brand of weather radar used to track precipitation.

Sample Sentence: The Doppler radar accurately predicted the incoming storm's intensity and duration.

Adjective

2. Local: A term used to describe a phenomenon or effect specific to a particular region or area.

Sample Sentence: The Doppler shift caused by the river's flow was a local observation unique to this area.