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Why a disambiguation page?
editFirst off because this is a common misspelling of "pyramid", being, inter alia the form in French and German, and an alternate form in Italian. It wouldn't surprise me if more searchers come in looking for that than either of the two actual uses. Second, neither of the two uses appears to be primary at present. The drug name has been around for awhile, but not in an English speaking country, and the chemical subclass is newly discussed since 2012 when fluopyram, its only established member so far, was registered as a fungicide. As WP:TWODABS says: If there are only two topics to which a given title might refer, but per the criteria at Is there a primary topic? there is no primary topic, then the base name should lead the reader to the disambiguation page for the term. --Bejnar (talk) 21:10, 27 October 2014 (UTC)
Brand name
edit"Pyramide" is a brand name for pyrazinamide in Japan and Thailand.<ref>"Pyramide". Drugs.com.</ref> --Bejnar (talk) 20:42, 27 October 2014 (UTC)
Chemical group
editIn organic chemistry "pyramide" is a short form name for the chemical group of pyridinyl ethylbenzamides (pyridinylethylbenzamides), which are in the larger category of benzamides. One of the pyramides, fluopyram, is used as a fungicide.<ref>"Fluopyram" Singh, K. N. and Merchant, Kavita (2012). "The Agrochemical Industry, Annex 17.1". In Kent, James A. (ed.). Handbook of Industrial Chemistry and Biotechnology. New York: Springer Verlag. pp. 643–698 page 693. doi:10.1007/978-1-4614-4259-2_17.{{cite book}}: CS1 maint: multiple names: authors list (link)
</ref>. --Bejnar (talk) 20:42, 27 October 2014 (UTC)
Nerve fibre aggregations
editIt turns out that the pyramidal tracts are sometimes referred to as pyramides. See, e.g. Brain stem ventral view, Image 15 at Cerebellum, and "Neuroanatomy I / II" by Irmgard Amrein, page 39 under "Medulla oblongata". --Bejnar (talk) 21:37, 27 October 2014 (UTC)