pittacaln.

Brit.

/ˈpɪtəkl/,

/ˈpɪtəkal/, U.S.

/ˈpɪdək(ə)l/,

/ˈpɪdəˌkæl/

Forms: 1800s pittacall, 1800s– pittacal.

Origin: A borrowing from German. Etymon: German Pittakall.

Etymology: < German Pittakall (K. von Reichenbach 1833, in Neues Jahrb. der Chem. u. Physik 8 3) < ancient Greek πίττα pitch (see pissasphalt n.) + κάλλος beauty (see callisthenic adj. and n.). Compare French pittacale (1836 or earlier as †pittacalle; now rare).

Chemistry (now chiefly historical).

A dark blue colouring matter obtained by Reichenbach as a high-boiling fraction in the fractional distillation of wood-tar.

ΘΚΠ

the world > life > biology > substance > pigment > [noun] > plant pigments > blue

pittacal1835

phycocyan1866

the world > matter > colour > named colours > blue or blueness > blue substances > [noun] > others

pittacal1835

phyllocyanin1861

cerulein1866

1835 Rec. Gen. Sci. 1 54 On Pittacal, a new dye-stuff.

1866 H. Watts Dict. Chem. IV. 661 Pittacal appears to have decided basic characters, for it is dissolved by acids and precipitated by alkalis.

1940 Thorpe's Dict. Appl. Chem. (ed. 4) IV. 401/1 The colouring matters described by the terms eupittone, eupittonic acid and pittacal appear identical.

2000 S. Garfield Mauve 44 In 1834 Runge had used carbolic acid to make aurin (a red colour), and pittacal (a deep blue) was obtained from beechwood tar.

This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).

单词	pittacal
释义	pittacaln. Brit. /ˈpɪtəkl/, /ˈpɪtəkal/, U.S. /ˈpɪdək(ə)l/, /ˈpɪdəˌkæl/ Forms: 1800s pittacall, 1800s– pittacal. Origin: A borrowing from German. Etymon: German Pittakall. Etymology: < German Pittakall (K. von Reichenbach 1833, in Neues Jahrb. der Chem. u. Physik 8 3) < ancient Greek πίττα pitch (see pissasphalt n.) + κάλλος beauty (see callisthenic adj. and n.). Compare French pittacale (1836 or earlier as †pittacalle; now rare). Chemistry (now chiefly historical). A dark blue colouring matter obtained by Reichenbach as a high-boiling fraction in the fractional distillation of wood-tar. ΘΚΠ the world > life > biology > substance > pigment > [noun] > plant pigments > blue pittacal1835 phycocyan1866 the world > matter > colour > named colours > blue or blueness > blue substances > [noun] > others pittacal1835 phyllocyanin1861 cerulein1866 1835 Rec. Gen. Sci. 1 54 On Pittacal, a new dye-stuff. 1866 H. Watts Dict. Chem. IV. 661 Pittacal appears to have decided basic characters, for it is dissolved by acids and precipitated by alkalis. 1940 Thorpe's Dict. Appl. Chem. (ed. 4) IV. 401/1 The colouring matters described by the terms eupittone, eupittonic acid and pittacal appear identical. 2000 S. Garfield Mauve 44 In 1834 Runge had used carbolic acid to make aurin (a red colour), and pittacal (a deep blue) was obtained from beechwood tar. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < n.1835
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