sial

[ sahy-al ]
/ ˈsaɪ æl /

noun Geology.

the assemblage of rocks, rich in silica and alumina, that comprise the continental portions of the upper layer of the earth's crust.
Compare sima1.

Origin of sial

1920–25; < German, equivalent to Si(licium) silicium + Al(uminium) aluminum

OTHER WORDS FROM sial

si·al·ic, adjective

Words nearby sial

si quaeris peninsulam amoenam, circumspice, si unit, si-ma qian, siabon, siad barre, sial, sial-, sialadenitis, sialadenosis, sialagogic, sialagogue

British Dictionary definitions for sialic

sial
/ (ˈsaɪəl) /

noun

the silicon-rich and aluminium-rich rocks of the earth's continental upper crust, the most abundant individual rock being granite

Derived forms of sial

sialic (saɪˈælɪk), adjective

Word Origin for sial

C20: si ( licon) + al ( uminium)

Medical definitions for sialic

sialic
[ sī-ăl′ĭk ]

adj.

Having or having the characteristics of saliva.