Tertiary

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Tertiary (from Latin, meaning 'third' or 'of the third degree/order..') may refer to:

• Tertiary period, an obsolete geologic period spanning from 66 to 2.6 million years ago
• Tertiary (chemistry), a term describing bonding patterns in organic chemistry
• Tertiary care, specialized consultative healthcare
• Tertiary color, a color made up by mixing one primary color with one secondary color, in a given color space
• Tertiary consumer, in ecology
• Tertiary education, educational levels following the completion of secondary education such as university or trade school
• Tertiary feathers or tertials, feathers attached to humerus or inner portion of the wings of birds
• Tertiary sector of the economy, or the service sector
• Tertiary source, in research
• Tertiary stress, a proposed level of stress in phonetics
• In biochemistry, the tertiary structure of a protein is its overall shape, also known as its fold
• Tertiary, a member of a third order religious group

• Ternary (disambiguation)
• Secondary (disambiguation)
• Quaternary (disambiguation)
• All pages with titles beginning with Tertiary
• All pages with titles containing Tertiary

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