- of, belonging, or pertaining to the order Passeriformes, comprising more than half of all birds and typically having the feet adapted for perching.
- oscine (def. 1).
- any bird of the order Passeriformes.
- of, relating to, or belonging to the Passeriformes, an order of birds characterized by the perching habit: includes the larks, finches, crows, thrushes, starlings, etc
- any bird belonging to the order Passeriformes
