| ARR | a family of monocotyledonous bog herbs of order Naiadales |
|---|---|
| ARR | of a leaf shape |
| ARR | the pointed head or striking tip of an arrow |
| ARR | perennial with sharply toothed triangular leaves on leafy stems bearing a cluster of yellow flower heads |
| ARR | canna grown especially for its edible rootstock from which arrowroot starch is obtained |
| ARR | white-flowered West Indian plant whose root yields arrowroot starch |
| ARR | a nutritive starch obtained from the root of the arrowroot plant |
| ARR | tropical perennial herbs with usually starchy rhizomes |
| ARR | a maker of arrows |
| ARR | any worm of the Chaetognatha |
| ARR | (southwestern United States) a stream or brook |
| ARR | shrubby willow of the western United States |