adj.
- occurring once every year.
- calculated over or covering a year.
- (of a plant) living only for a year or less, perpetuating itself by seed. Compare with biennial, perennial.
n.
- a book or magazine of a series published once a year.
- an annual plant.
Derivative
Etymology
ME: from OFr. annuel, from late L. annualis, based on L. annus ‘year’.