- 1. n. A dark blue substance obtained from wood tar. It consists of hydrocarbons which when oxidized form the orange-yellow eupittonic compounds, the salts of which are dark blue. Source: opted
- 2. A dark blue substance obtained from wood tar. It consists of hydrocarbons which when oxidized form the orange-yellow eupittonic compounds, the salts of which are dark blue. Source: webster
- 3. A dark blue substance obtained from wood tar. It consists ofhydrocarbons which when oxidized form the orange-yellow eupittoniccompounds, the salts of which are dark blue. Source: adambom
- 4. pittacal (uncountable) (organic chemistry) A dark blue dyestuff, the first to be commercially produced. Source: ecdict
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pittacal
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bluedarkconsistsformobtainedoxidizedsaltssubstancetarwoodcompoundseupittonichydrocarbonschemistrycommerciallydyestufffirstorganicproduced