Definition of osmic acid in English:

osmic acid

noun

Chemistry
  • A solution of osmium tetroxide.

    • ‘Small pieces of tissue are immersed in 2 per cent osmic acid for 8 to 16 days.’
    • ‘The bacilli were stained by osmic acid and not dissolved by potash tye.’

Origin

Mid 19th century: osmic from osmium + -ic.