"act or process of making solid," 1800; noun of action from solidify; perhaps from French solidification. Earlier was solidation (1540s).
Entries linking to solidification
solidify v.
1799 (transitive) "convert to a solid state;" 1837 (intransitive), "become solid or compact," from French solidifier, from Old French solide "firm, dense, compact" (see solid (adj.)) + -fier (see -fy). Related: Solidified; solidifying; solidifiable.