| ALD | a monosaccharide sugar that contains the aldehyde group or is hemiacetal |
|---|---|
| ALD | a corticosteroid hormone that is secreted by the cortex of the adrenal gland |
| ALD | a condition caused by over-production of aldosterone |
| ALD | English writer |
| ALD | English writer |
| ALD | one species: waterwheel plant |
| ALD | floating aquatic carnivorous perennial of central and southern Europe, Africa, Asia, Australia having whorls of 6 to 9 leaves ending in hinged lobes for capturing e.g. water fleas |