Secondary

From Free net encyclopedia

Secondary is an adjective meaning "second" or "second hand". It may refer to:

• Secondary education
• A Secondary dominant in music.
• The Secondary in American football refers to the group of (usually four) defensive backs.
• A Secondary functional group (or usually ion) attached to carbon atom connected to 2 other Carbon atoms in organic chemistry

See also

• Primary
• Tertiary
• Quaternary

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