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| actinozoan |
see "anthozoan." |
| action |
something that is done, is being done, or will be done. [8 definitions] |
| actionable |
providing legitimate grounds for legal action. |
| action-adventure |
a genre of films, video games, and the like having an exciting undertaking involving risk and danger as its main story line, and involving one or more heroes engaged in a series of physical challenges. [2 definitions] |
| actionless |
combined form of action. |
| action movie |
a film whose story line focuses on conflict and fast-paced activity, esp. involving physical violence, feats of strength and agility, and chase scenes. |
| action-packed |
of a film, video, story, or the like, filled with scenes depicting action, danger, and exciting events. |
| action verb |
a verb that shows its subject performing some action. "Run," "eat," "fly," and "sing" are examples of action verbs. |
| activate |
to initiate action in; make active. [6 definitions] |
| activated carbon |
a form of very porous and thus very absorbent carbon, produced by heating charcoal so as to empty out contained gases, and used to absorb other gases, recover solvents, deodorize, and the like; activated charcoal. |
| activated charcoal |
see "activated carbon." |
| activation code |
a set of characters, consisting of numbers, letters, characters, or a combination of these, that is sent by a website to a user's email so that the website can verify the user's email address and comply with the user's request to begin a new service or change personal information. Once received, the user enters the code into the provided box on the website so that fulfillment of the user's request can begin. |
| active |
constantly doing something; busy; energetic. [7 definitions] |
| active duty |
the status of full-time service or work, esp. in the military. |
| active immunity |
an organism's immunity to a disease because of its production of antibodies. |
| actively |
in a way that involves making an effort, taking action, or participating; not passively. |
| activism |
the belief in or practice of trying to make social or political changes through active, militant, or demonstrative involvement, esp. in particular issues. |
| activist |
one who advocates a cause with vigor or militance. |
| activity |
the condition or state of being active. [4 definitions] |
| act of God |
in law, a sudden unforeseen event, esp. a natural disaster such as an earthquake, flood, or tornado, that is caused entirely by forces of nature and could not have been prevented. |
| actor |
one who plays roles in dramatic productions on stage, in films, or on radio and television. [2 definitions] |
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