Available Definitions:
1) a. - Hooded; cowled; covered, as with a hood.
2) a. - Having the edges toward the base rolled inward, as the leaf of the commonest American blue violet.
3) a. - Having the prothorax elevated so as to form a sort of hood, receiving the head, as in certain insects.
4) a. - Having a hoodlike crest on the head, as certain birds, mammals, and reptiles.