| ALD | a synthetic corticosteroid (trade name Aldactone) used to treat hypertension |
|---|---|
| ALD | the brightest star in Taurus |
| ALD | any of a class of highly reactive chemical compounds |
| ALD | the chemical group -CHO |
| ALD | the chemical group -CHO |
| ALD | an oily colorless liquid obtained by the condensation of two molecules of acetaldehyde |
| ALD | of or related to or containing aldehydes |
| ALD | north temperate shrubs or trees having toothed leaves and conelike fruit |
| ALD | wood of any of various alder trees |
| ALD | a disease of alders caused by the woolly alder aphid (a plant louse) |
| ALD | small tree common in Europe |
| ALD | small tree common in Europe |