pi·le·um 
(pīlē-əm)
(pīlē-əm)n. pl. pi·le·a (-lē-ə)
The top of a bird's head, extending from the base of the bill to the nape.
[New Latin pīleum, from Latin pīleus, felt cap.]
- in the running
- in the saddle
- in the same boat
- in the same breath
- in the short run
- in the soup
- in the street
- in the sun
- in the swim
- in the tank
- in the teeth of
- in the wake of
- in the way
- in the wind
- in the wings
- in the works
- in the world
- in the worst way
- in the zone
- intifada
- intima
- intimacy
- intimal
- intimate
- intimate