ABRA
A"bra, n. [Sp., a bay, valley, fissure.]
Defn: A narrow pass or defile; a break in a mesa; the mouth of a cañon. [Southwestern U. S.]
ABRACADABRA
Ab`ra*ca*dab"ra, n. Etym: [L. Of unknown origin.]
Defn: A mystical word or collocation of letters written as in the figure. Worn on an amulet it was supposed to ward off fever. At present the word is used chiefly in jest to denote something without meaning; jargon.
ABRADANT
Ab*ra"dant, n.
Defn: A material used for grinding, as emery, sand, powdered glass, etc.
ABRADE
Ab*rade", v. t. [imp. & p. p. Abraded; p. pr. & vb. n. Abrading.]
Etym: [L. abradere, abrasum, to scrape off; ab + radere to scrape.
See Rase, Raze.]
Defn: To rub or wear off; to waste or wear away by friction; as, to abrade rocks. Lyell.
ABRADE
A*brade", v. t.
Defn: Same as Abraid. [Obs.]