atonic
- a characterized by a lack of tonus
- a used of syllables
an atonic syllable carries no stress
atrial
- a of or relating to a cavity or chamber in the body (especially one of the upper chambers of the heart)
atrioventricular
- a relating to or affecting the atria and ventricles of the heart
atrioventricular disease
atrocious
- s shockingly brutal or cruel
murder is an atrocious crime - s exceptionally bad or displeasing
atrocious taste - s provoking horror
an atrocious automobile accident
atrophic
- a relating to or characterized by atrophy
atrophic arthritis