Tertiary (disambiguation)

Tertiary (from Latin tertiarius) is an adjective meaning "third" or "third hand". It may refer to:

The Tertiary period of the geologic time scale.
In economics the tertiary sector (of industry) is the service sector or the service industry (as opposed to the primary—agricultural and natural resources—and secondary, manufacturing)
Tertiaries, members of a Third order (lay folk connected with a Mendicant Order).
A tertiary consumer in an ecological sense.
A Tertiary functional group (or usually ion) attached to carbon atom connected to three other carbon atoms in organic chemistry
A tertiary alcohol (tert), which has three carbon atoms connected to the carbon atom that bears the hydroxyl group.
Tertiaries, the smallest group of remiges (wing feathers), which attach to the wings of birds. Usually, they are not flight feathers, but resemble body plumage.
In biochemistry, the tertiary structure of a protein is its overall shape, also known as its fold
Tertiary education
Tertiary care, specialized consultative healthcare.
Ternary operation, in computer science a ternary operator (sometimes incorrectly referred to as a tertiary operator), an operator that takes three arguments
Tertiary color, a color made up by mixing one primary color with one secondary color, in a given color space
Tertiary stress, a proposed degree of stress in linguistics
A member of a third order religious group
Tertiary source, a summary of primary and secondary sources
A tertiary character, a minor character in a serial work of fiction such as a sitcom or webcomic, who nevertheless makes recurrent appearances

See also