ethyl butylacetylaminopropionate /ˈɛθɪl ˌbjuːtɪl əˌsɛtɪl əˌmiːnoʊproʊˈpiːəneɪt/ noun1 •A synthetic chemical compound used as an insect repellent, especially against mosquitoes and ticks, that is applied to the skin or clothing to reduce insect bites.