Defn: Color blindness; achromatopsy.

ACRITUDE
Ac"ri*tude, n. Etym: [L. acritudo, from acer sharp.]

Defn: Acridity; pungency joined with heat. [Obs.]

ACRITY
Ac"ri*ty, n. Etym: [L. acritas, fr. acer sharp: cf. F. âcreté.]

Defn: Sharpness; keenness. [Obs.]

ACROAMATIC; ACROAMATICAL
Ac`ro*a*mat"ic, Ac`ro*a*mat"ic*al, a. Etym: [Gr.

Defn: Communicated orally; oral; — applied to the esoteric teachings of Aristotle, those intended for his genuine disciples, in distinction from his exoteric doctrines, which were adapted to outsiders or the public generally. Hence: Abstruse; profound.

ACROATIC
Ac`ro*at"ic, a. Etym: [Gr.

Defn: Same as Acroamatic.

ACROBAT
Ac"ro*bat, n. Etym: [F. acrobate, fr. Gr.