English

Noun

tropæolin ‎(uncountable)

1. Obsolete spelling of tropaeolin
   • 1891, Charles Hilton Fagge, Philip Henry Pye-Smith, Text‐book of the Principles and Practice of Medicine, volume II, page 199:

     The asserted fact that free hydrochloric acid is absent from the fluid removed by a siphon in cases of cancer of the stomach has been lately much discussed in Germany, and Dr Van der Welden, of Strassburg, introduced an alcoholic solution of tropæolin as a test with this object.

References

• tropæolin in The Century Dictionary, The Century Co, New York, 1911