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picrocarmine
picrocarmine n. 
/ˌpɪkrə(ʊ)ˈkɑːmɪn/, /ˌpɪkroʊˈkɑrmən/ a solution of picric acid, carmine, and ammonia used as a red histological stain.
Brit. /ˌpɪkrə(ʊ)ˈkɑːmʌɪn/
, /ˌpɪkrə(ʊ)ˈkɑːmʌɪn//ˌpɪkrə(ʊ)ˈkɑːmɪn/U.S. /ˌpɪkroʊˈkɑrˌmaɪn/
, /ˌpɪkroʊˈkɑrˌmaɪn//ˌpɪkroʊˈkɑrmən/ΘΚΠ
the world > life > biology > laboratory analysis > material > [noun] > staining material
osmium tetroxide1869
picrocarmine1872
rose bengal1878
stain1880
erythrosin1884
Gram stain1884
vesuvin1885
Nile blue1888
pyronin1895
Janus green1898
counterstain1899
Nissl stain1899
Leishman stain1904
trypan blue1911
quinacrine mustard1957
the world > matter > colour > named colours > red or redness > red colouring matter > [noun] > stains
picrocarmine1872
erythrosin1884
1872 G. R. Cutter tr. H. Frey Microscope & Microsc. Technol. 160 (heading) Picro-carmine staining.
1880 Q. Jrnl. Microsc. Sci. 20 230 By using osmic acid, followed by picrocarmine, it is easy to preserve the ectoderm with its clothing of cilia.
1930 H. G. Newth Marshall & Hurst's Junior Course Pract. Zool. (ed. 11) xi. 207 Stain it with picrocarmine.
1984 20th Cent. Lit. 30 124 In a showman's display of orchids or gladiolas, one receives the effect of vials of picrocarmine, magenta, gamboge and violet.
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