ADHORTATORY
Ad*hor"ta*to*ry, a.
Defn: Containing counsel or warning; hortatory; advisory. [Obs.]
Potter.
ADIABATIC
Ad`i*a*bat"ic, a. Etym: [Gr. (Physics)
Defn: Not giving out or receiving heat. — Ad`i*a*bat`ic*al*ly, adv. Adiabatic line or curve, a curve exhibiting the variations of pressure and volume of a fluid when it expands without either receiving or giving out heat. Rankine.
ADIACTINIC
Ad`i*ac*tin"ic, a. Etym: [Pref. a- not + diactinic.] (Chem.)
Defn: Not transmitting the actinic rays.
ADIANTUM
Ad`i*an"tum, n. Etym: [L., fr. Gr. (Bot.)
Defn: A genus of ferns, the leaves of which shed water; maidenhair.
Also, the black maidenhair, a species of spleenwort.
ADIAPHORISM
Ad`i*aph"o*rism, n.
Defn: Religious indifference.