conservationismn.
/ˌkɒnsəˈveɪʃn̩ɪz(ə)m/, /ˌkɒnsəˈveɪʃənɪz(ə)m/, U.S. /ˌkɑnsərˈveɪʃənɪzəm/ Support for or advocacy of conservation, esp. of the natural environment.
ΚΠ
1910 Independent (N.Y.) 13 Oct. 831/1 A purely utilitarian conservationism is beginning to undermine the nation's purpose in creating national parks.
1933 Circleville (Ohio) Herald 24 Mar. 1/8 Commissioner of the Ohio conservation department sold ‘conservationism’ to a crowd of more than 250 persons.
1970 Times 5 Jan. 8 [Without renovations] such buildings will literally fall down, historic features and all: so that, if pedantic conservationism has its way, the famous curve of the High will eventually..be replaced by a line of modern office blocks.
2006 S. M. Stirling Sky People ii. 69 If they were economical with game, it was because hunting was dangerous hard work, not from conservationism.
This is a new entry (OED Third Edition, November 2010; most recently modified version published online March 2022).
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n.1910