I. (ˈ)rep|tilēən, -lyən adjective
Etymology: New Latin Reptilia + English -an, adjective suffix
1.
a. : resembling or having the characteristics of the Reptilia or a reptile
his light green reptilian eye — Jean Stafford
b. : held to resemble a reptile in nature or character : mean
a reptilian villain — Theodore Dreiser
2. : of or relating to the Reptilia or a reptile
a reptilian skull
II. noun
( -s )
Etymology: New Latin Reptilia + English -an, n. suffix
: one of the Reptilia : reptile 2