si·ma 
(sīmə)
(sīmə)n.
The lower layer of the earth's outer crust that underlies the sial and is rich in silica, iron, and magnesium.
[SI(LICA) + MA(GNESIUM).]
- follicle mite
- follicle-stimulating hormone
- follicular
- follicular cell
- folliculate
- folliculated
- folliculitis
- follow
- follow along
- follower
- followership
- follow in footsteps
- following
- follow in (someone's) footsteps
- follow in someone's footsteps
- follow nose
- follow-on
- follow (one's) nose
- follow one's nose
- follow suit
- follow through
- follow-through
- followthrough
- follow up
- follow-up