orbital

noun or·bit·al \ ˈȯr-bə-tᵊl \
Updated on: 11 Sep 2017

Definition of orbital

:a mathematically described region around a nucleus in an atom or molecule that may contain zero, one, or two electrons

Origin and Etymology of orbital

derivative of orbital


ORBITAL Defined for English Language Learners

orbital

noun

Definition of orbital for English Language Learners

  • : a highway that goes around a city


Medical Dictionary

orbital

noun or·bit·al \ ˈȯr-bət-ᵊl \

medical Definition of orbital

:a subdivision of a nuclear shell containing zero, one, or two electrons


Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

serious difficulty or misfortune

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one-green-toy-robot-amidst-many-red-toy-robots
  • Which of these words does not mean "nonsense"?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Bee Cubed

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!