Clypeate \Clyp"e*ate\, a. [L. clupeatus, p. p. of clupeare to arm with a shield, fr. clupeus, clipeus shield.] 1. (Bot.) Shaped like a round buckler or shield; scutate. [1913 Webster] 2. (Zool.) Furnished with a shield, or a protective plate or shell. [1913 Webster]