| Act | ornamental vine of eastern Asia having yellow edible fruit and leaves with silver-white markings |
|---|---|
| Act | tropical trees or shrubs or woody vines |
| Act | terrestrial ferns of tropical Asia and Africa |
| Act | the property of radiation that enables it to produce photochemical effects |
| Act | a radioactive element of the actinide series |
| Act | any of a series of radioactive elements with atomic numbers 89 through 103 |
| Act | having a radial form |
| Act | a green mineral of the amphibole group |
| Act | used in some classification systems for plants now included in genus Verbesina |
| Act | perennial herb with showy yellow flowers |
| Act | an instrument for measuring the intensity of electromagnetic radiation (usually by the photochemical effect) |
| Act | of or related to actinometry |