Arrhenius
— Noun
– English
～ Swedish chemist and physicist noted for his theory of chemical dissociation (1859-1927)
arrhythmia
— Noun
– English
～ an abnormal rate of muscle contractions in the heart
arrival
— Noun
– English
～ accomplishment of an objective
arrival
— Noun
– English
～ someone who arrives (or has arrived)
arrival
— Noun
– English
～ the act of arriving at a certain place; "they awaited her arrival"
arrivederci
— Noun
– English
～ a farewell remark; "they said their good-byes"
arriver
— Noun
– English
～ someone who arrives (or has arrived)
arriviste
— Noun
– English
～ a person who has suddenly risen to a higher economic status but has not gained social acceptance of others in that class
arroba
— Noun
– English
～ a unit of weight used in some Spanish speaking countries
arroba
— Noun
– English
～ a liquid measure (with different values) used in some Spanish speaking countries
arrogance
— Noun
– English
～ overbearing pride evidenced by a superior manner toward inferiors
arrogation
— Noun
– English
～ seizure by the government
arrogator
— Noun
– English
～ a person who through conceit makes pretentious claims to rights or advantages that he or she is not entitled to or to qualities that he or she does not possess
arrow
— Noun
– English
～ a projectile with a straight thin shaft and an arrowhead on one end and stabilizing vanes on the other; intended to be shot from a bow
arrow
— Noun
– English
～ a mark to indicate a direction or relation
arrowhead
— Noun
– English
～ the pointed head or striking tip of an arrow
American arrowroot
— Noun
– English
～ white-flowered West Indian plant whose root yields arrowroot starch
arrowroot
— Noun
– English
～ a nutritive starch obtained from the root of the arrowroot plant