| Aconitic |
| Of or pertaining to aconite. |
| Aconitine |
| An intensely poisonous alkaloid, extracted from aconite. |
| Aconitum |
| The poisonous herb aconite; also, an extract from it. |
| Acontia |
| Threadlike defensive organs, composed largely of
nettling cells (cnidae), thrown out of the mouth or special pores of
certain Actiniae when irritated. |
| Acontias |
| Anciently, a snake, called dart snake; now, one of a
genus of reptiles closely allied to the lizards. |
| Acopic |
| Relieving weariness; restorative. |
| Acorn |
| The fruit of the oak, being an oval nut growing in a woody
cup or cupule. |
| Acorn |
| A cone-shaped piece of wood on the point of the spindle
above the vane, on the mast-head. |
| Acorn |
| See Acorn-shell. |
| Acorn cup |
| The involucre or cup in which the acorn is fixed. |
