n.
Function: noun
Inflected Form: plural -ar · ies
Date: 15th century
1 : one occupying a subordinate or auxiliary position rather than that of a principal
2 : a defensive football backfield
3 : the coil through which the secondary current passes in an induction coil or transformer ― called also secondary coil
4 : any of the quill feathers of the forearm of a bird ― see WING illustration