| Actinaria |
| A large division of Anthozoa, including those which
have simple tentacles and do not form stony corals. Sometimes, in a
wider sense, applied to all the Anthozoa, expert the Alcyonaria,
whether forming corals or not. |
| Acting |
| Operating in any way. |
| Acting |
| Doing duty for another; officiating; as, an acting
superintendent. |
| Actiniae |
| of Actinia |
| Actinias |
| of Actinia |
| Actinia |
| An animal of the class Anthozoa, and family Actinidae.
From a resemblance to flowers in form and color, they are often called
animal flowers and sea anemones. [See Polyp.]. |
| Actinia |
| A genus in the family Actinidae. |
| Actinic |
| Of or pertaining to actinism; as, actinic rays. |
| Actiniform |
| Having a radiated form, like a sea anemone. |
| Actinism |
| The property of radiant energy (found chiefly in solar or
electric light) by which chemical changes are produced, as in
photography. |