Lenigallol is a strange word. It is spelt as /lɛnigælɔl/. The word is not found in any official dictionaries, but it seems to be a made-up word. In IPA phonetic transcription, the first syllable is 'leni' pronounced as /lɛni/. The second syllable 'gal' is pronounced as /gæl/. The last syllable 'lol' is pronounced as /lɔl/. It is unclear what the word means or where it came from. However, the spelling of the word can be easily understood by following the phonetic transcription.
Pyrogallol triacetate, triacetylpyrogallol, a white insoluble crystalline powder, employed in ointment for eczema and psoriasis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.