cen·tro·sphere 
(sĕntrə-sfîr′)
(sĕntrə-sfîr′)n.
1. The mass of cytoplasm surrounding the centriole in a centrosome.
2. The central part of the earth, usually the part beneath the lithosphere but sometimes the part beneath the mantle.
- throw rug
- throw (someone) a bone
- throw someone a bone
- throw someone a curve ball
- throw (someone) under the bus
- throw someone under the bus
- throwster
- throw the baby out with the bath water
- throw the book at
- throw/toss (one's) hat into the ring
- throw under the bus
- throw up
- throw up hands
- throw up (one's) hands
- throw up one's hands
- throw-weight
- throw weight
- throw weight around
- thru
- thrum
- thrum
- thrush
- thrush
- thrust
- thrust fault