Airol
/ˈɛːrɒl/Pharmacology
noun
1A greyish-green powder consisting of a basic iodide and gallate of bismuth, used chiefly as a topical antiseptic, either in solid form or as an ointment.
- Chemical name: bismuth 3,4,5-trihydroxybenzoate hydroxide iodide; BiC7H6IO6..
2= tretinoin.
Origin
Late 19th century; earliest use found in The Lancet. From German Airol, apparently an arbitrary formation. Compare:2 apparently independently reintroduced for a different and unrelated substance.