from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A sea anemone or a related animal.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a sea anemone, a member of the genus Actinia.
from the GNU version of the Collaborative International Dictionary of English
- n. An animal of the class Anthozoa, and family Actinidæ. From a resemblance to flowers in form and color, they are often called animal flowers and sea anemones. [See polyp.].
- n. A genus in the family Actinidæ.
from The Century Dictionary and Cyclopedia
- n. Agenus of zoöphytes, belonging to the Radiata of Cuvier, regarded as the type of the order Malacodermata, subclass Zoantharia, class Actinozoa, subkingdom Cælenterata, in modern classification.
- n. An animal of the genus Actinia or family Actiniidæ.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a genus of sea anemone common in rock pools
- n. any sea anemone or related animal
He postulated as the far-back ancestor of Vertebrates, "an actinia-like, vermiform being, elongated in the direction of the mouth-slit" (p. 410, 1906), and derived the central nervous system from the circum-oral ring of this primitive form, the notochord from its stomodæum, and the coelom from the peripheral parts of the gastric cavity (p. 169, 1909).
Actinia Bay, from the large number of actinia which the dredge brought up there.
On the afternoon following the expedition to Bickleypool, Louis was seated, with an earthenware pan before him, coaxing an actinia with raw beef to expand her blossom, to be copied for Miss Faithfull.
Dicquemarre has further elucidated the history of the actinia; and observed their manner of taking their prey by inclosing it in these beautiful rays like a net.