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meta-arsenate
meta-arsenate n. 
/mᵻˈtɑːsn̩eɪt/, /mᵻˈtɑːs(ᵻ)nᵻt/, /mᵻˈtɑːsn̩ᵻt/, /məˈtɑrs(ə)nət/ (also metarsenate)
Brit. /mᵻˈtɑːs(ᵻ)neɪt/
, /mᵻˈtɑːs(ᵻ)neɪt//mᵻˈtɑːsn̩eɪt//mᵻˈtɑːs(ᵻ)nᵻt//mᵻˈtɑːsn̩ᵻt/U.S. /məˈtɑrs(ə)ˌneɪt/
, /məˈtɑrs(ə)ˌneɪt//məˈtɑrs(ə)nət/ΚΠ
1861 W. Odling Man. Chem. 338 Metarsenates and pararsenates are converted respectively into monometallic and dimetallic common arsenates by the action of water.
1911 Science 9 June 900/2 At least three forms of arsenate of lead may result, namely, ortho-arsenate of lead (Pb3(AsO4)2, pyro-arsenate of lead (Pb2As2O7) and meta-arsenate of lead ((PbHAsO4)2).
1940 G. H. J. Adlam & L. S. Price Higher School Certificate Inorg. Chem. (ed. 2) xlii. 416 Pyro- and meta-arsenates change immediately to ortho- when dissolved in water.
2008 A. J. Carpousis et al. in L. E. Maquat & C. Arraiano RNA Turnover in Bacteria, Archaea & Organelles x. 194 Sodium meta-arsenate should be handled with care, because it is both toxic and carcinogenic.
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