Defn: Of or pertaining to arctic lands; as, the arctogeal fauna.
ARCTOIDEA
Arc*toid"e*a, n. pl. Etym: [NL., fr. Gr. -oid.] (Zoöl.)
Defn: A group of the Carnivora, that includes the bears, weasels, etc.
ARCTURUS
Arc*tu"rus, n. Etym: [L. Arcturus, Gr. Arctic.] (Anat.)
Defn: A fixed star of the first magnitude in the constellation
Boötes.
Note: Arcturus has sometimes been incorrectly used as the name of the constellation, or even of Ursa Major. Canst thou guide Arcturus with his sons [Rev. Ver.: "the Bear with her train">[. Job xxxviii. 32.
ARCUAL
Arc"u*al, a.
Defn: Of or pertaining to an arc. Arcual measure of an angle (Math.), that in which the unit angle has its measuring arc equal to the radius of the circle.
ARCUATE; ARCUATED Arc"u*ate, Arc"u*a`ted(#), a. Etym: [L. arcuatus, p. p. of arcuare to shape like a bow, fr. arcus. See Arc.]
Defn: Bent or curved in the form of a bow. "Arcuate stalks." Gray.