Definition of "neonic"

Researchers found that 15 of 17 species which commonly live on farmland – including the small tortoiseshell, small skipper and wall butterfly – show declines associated with increasing neonic use. […] Neonics were first introduced in 1994 and usage increased at its fastest rate during the first decade of the 21st century, […]

2015 November 24, Patrick Barkham, “Pesticide may be reason butterfly numbers are falling in UK, says study”, in The Guardian‎