I. ˈserəˌtīn, -_tə̇n, -ˌtēn adjective
Etymology: Latin serotinus coming late, from sero late — more at soiree
: late especially in developing or flowering
II. -ˌtēn noun
( -s )
Etymology: French sérotine, from Latin serotina, feminine of serotinus coming late
: a common European brown bat ( Eptesicus serotinus )