| 1. | Immunology. any of various cells of the immune system that work with T or B cells to initiate a specific immune response. |
| 2. | Botany. a plant epidermal cell associated with guard cells and different morphologically from other epidermal cells. |
| accessory cell n. See subsidiary cell. |
| subsidiary cell n. A plant epidermal cell that is associated with guard cells and differs morphologically from other epidermal cells. Also called accessory cell. |
| accessory cell
See subsidiary cell. |