cerumen
noun
ce·ru·men sə-ˈrü-mən 
: earwax
ceruminous
sə-ˈrü-mə-nəs
adjective 
Example Sentences
Recent Examples on the Web Water in your ear can lead to either a bacterial infection or a fungal infection, and it's most often caused by water that remains in your ear canal, possibly trapped behind cerumen (ear wax). 
Claire Gillespie, Health.com, 29 June 2021
Claire Gillespie, Health.com, 29 June 2021 Word History
Etymology
New Latin, irregular from Latin cera wax; akin to Greek kēros wax
First Known Use
circa 1705, in the meaning defined above
Medical Definition
cerumen
noun
ce·ru·men sə-ˈrü-mən
: earwax