Dictionary
Find
in
Dictionary
Thesaurus
Translations

Click to move up the list of words
orch.
orchard
orchard bush
orchard grass
orchardist
orchestra
orchestra pit
orchestra stalls
orchestral
orchestrate
orchestrion
orchid
orchid bee
orchid tree
orchidopexy
orchiectomy
orchil
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

orbital

or·bit·al [ áwrbit'l ]


adjective 
Definition:
 
of orbits: relating to or belonging to an orbit



noun  (plural or·bit·als)
Definition:
 
space in atom occupied by electron: a subdivision of the available space within an atom for an electron to orbit the nucleus. An atom has many orbitals, each of which has a fixed size and shape and can hold up to two electrons.


or·bit·al·ly adverb
Advertisement

© 2009 Microsoft