cil·i·ary \ˈsilēˌerē, -i\adjective Etymology: French ciliaire, or Latin cilia + English -ary; French ciliaire from Latin cilia + French -aire -ary — more at cilia 1.: of or relating to cilia 2.of ocular structures: of, relating to, or being the ciliary body < a ciliary arteriole > < the ciliary zonule >