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sial

noun si·al \ ˈsīˌal \
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Definition of sial

plural -s
1 : siliceous or acid igneous rock whether solid or molten
2 : the lighter outer portion of the earth composed mainly of solid or molten rocks rich in silica and alumina — compare sima

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Origin and Etymology of sial

German, from New Latin silicium + aluminium

sial-

combining form
variants: or sialo-

Definition of sial-

: saliva
  • sialolith

Origin and Etymology of sial-

New Latin, from Greek, from sialon; akin to Latin spuere to spit

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