secondary

adjective

1. second, or below the first, in rank, importance, class, place, etc.; subordinate; minor; not primary
2. 1. derived or resulting from something considered primary or original; dependent; derivative
   2. secondhand; not original: a secondary source of information
   3. designating colors derived by mixing two primary colors
3. coming after that which is first in a series of processes, events, stages, etc., as of growth or development
4. coming next in sequence after the primary or elementary level: secondary education
5. Chem.
   1. formed by the replacement of two atoms or radicals in the molecule: secondary sodium phosphate, NaHPO
   2. characterized by or designating a carbon atom that is directly attached to two other carbon atoms in a closed or open chain
6. Elec. designating or of an induced current or its circuit in a transformer, induction coil, etc.
7. Geol. formed as a result of the alteration, disintegration, or erosion of preexisting rocks or minerals
8. Linguis.
   1. derived from a base that is itself a word, by the addition of a prefix or derivational suffix
   2. designating a form or a process that is historically relatively late; not original
9. Zool. designating or of the long flight feathers attached to the second joint or segment of a bird's wing

noun pl. secondaries

1. a person or thing that is secondary, subordinate, or inferior
2. any of the secondary colors
3. Elec. an output winding of a transformer from which the power is taken
4. Football the defensive backfield
5. Zool. a secondary feather