| Acronyctous |
| Acronycal. |
| Acrook |
| Crookedly. |
| Acropetal |
| Developing from below towards the apex, or from the
circumference towards the center; centripetal; -- said of certain
inflorescence. |
| Acrophony |
| The use of a picture symbol of an object to represent
phonetically the initial sound of the name of the object. |
| Acropodium |
| The entire upper surface of the foot. |
| Acropolis |
| The upper part, or the citadel, of a Grecian city;
especially, the citadel of Athens. |
| Acropolitan |
| Pertaining to an acropolis. |
| Acrospire |
| The sprout at the end of a seed when it begins to
germinate; the plumule in germination; -- so called from its spiral
form. |
| Acrospire |
| To put forth the first sprout. |
| Acrospore |
| A spore borne at the extremity of the cells of
fructification in fungi. |