The word "hygrol" is spelled using the International Phonetic Alphabet (IPA) transcription as /ˈhaɪɡrɔːl/. The first sound is a voiceless H, followed by the diphthong AI, which is a combination of the vowel sounds in "high" and "eye". The G sound is pronounced with a soft, velar g sound. The following O is pronounced as a long O, while the L is pronounced with a velarized L. The spelling of hygrol reflects the combination of its Greek roots "hygro-" meaning moisture and "-ol" meaning an organic compound with hydroxyl functionality.
Hydrargyrum colloidale.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
There is no evidence or information available regarding the word "hygrol". It could be a rare or obsolete term, a misspelling, or possibly a proper noun specific to a particular context or language. Without further clarification, it is difficult to determine the etymology or meaning of this word.