| ATR | a drug (trade name Atromid-S) that reduces lipids in the blood serum |
|---|---|
| ATR | belladonna |
| ATR | perennial Eurasian herb with reddish bell-shaped flowers and shining black berries |
| ATR | relating to or characterized by atrophy |
| ATR | a chronic autoimmune disease with inflammation of the joints and marked deformities |
| ATR | (of an organ or body part) diminished in size or strength as a result of disease or injury or lack of use |
| ATR | any weakening or degeneration (especially through lack of use) |
| ATR | a decrease in size of an organ caused by disease or disuse |
| ATR | undergo atrophy |
| ATR | booklice |
| ATR | a poisonous crystalline alkaloid extracted from the nightshade family |
| ATR | the Fate who cuts the thread of life |