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semi-chemical
semi-chemical adj. 
/ˌsɛmiˈkɛmək(ə)l/
Brit. /ˌsɛmɪˈkɛmᵻkl/
, /ˌsɛmɪˈkɛmᵻkl/U.S. /ˌsɛˌmaɪˈkɛmək(ə)l/
, /ˌsɛˌmaɪˈkɛmək(ə)l//ˌsɛmiˈkɛmək(ə)l/ΚΠ
1839 H. T. De la Beche Rep. Geol. Cornwall viii. 227 A semi-chemical, semi~mechanical origin.
semi-chemical
semi-chemical adj. /ˌsɛmiˈkɛmək(ə)l/ applied to (wood pulp made by) a pulping process in which wood chips are subjected to mild chemical delignification followed by mechanical processing.
Brit. /ˌsɛmɪˈkɛmᵻkl/
, /ˌsɛmɪˈkɛmᵻkl/U.S. /ˌsɛˌmaɪˈkɛmək(ə)l/
, /ˌsɛˌmaɪˈkɛmək(ə)l//ˌsɛmiˈkɛmək(ə)l/ΚΠ
1925 Paper Trade Jrnl. 15 Oct. 57/1 The various processes..for the production of semi-cellulose as above defined may conveniently be termed semi-chemical inking processes, as they consist essentially of some chemical treatment combined with a mechanical disintegration of the partially cooked wood.
1961 Times 2 June 26/2 A new semi-chemical pulp mill to use indigenous woods.
1974 Sci. Amer. Apr. 56/3 Semichemical processes are applied mainly to hardwoods because of the lower content of lignin in such wood.
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