The Lepidoptera have, over millions of years, evolved a wide range of wing patterns and coloration ranging from drab moths akin to the related order Trichoptera, to the brightly colored and complex-patterned butterflies.
Definition of sea oat. 1  1 : a tall grass (Uniola paniculata) that has panicles resembling those of the oat, grows on the coast of the southern U.S., and is useful as a sand binder âusually used in plural. 2  2 sea oats plural : a cluster of yellowish vase-shaped egg cases of a whelk of the genus Thais : sea corn.
Moving up in size, a sea is a large body of water that is surrounded by land or attached to another body of water. The Caspian Sea is one that is surrounded by land. The Mediterranean Sea is one that is attached to another body of water, in this case the Atlantic Ocean.