| PHOTOTAXES | • phototaxes n. Plural of phototaxis. • PHOTOTAXIS n. growth or movement determined by light. |
| PHOTOTAXIS | • phototaxis n. (Biology) The movement of an organism either towards or away from a source of light. • PHOTOTAXIS n. growth or movement determined by light. |
| PHOTOTONIC | • phototonic adj. Relating to phototonus. • PHOTOTONIC adj. relating to phototonus, the sensitivity of a living organism to light. |
| PHOTOTONUS | • phototonus n. Sensitivity to, or irritation caused by, light. • PHOTOTONUS n. the sensitivity of a living organism to light. |
| PHOTOTOXIC | • phototoxic adj. (Medicine, of a medicine or cosmetic) Causing damage to the skin when exposed to light. • PHOTOTOXIC adj. rendering the skin susceptible to damage (as sunburn or blisters). |
| PHOTOTROPE | • PHOTOTROPE n. a substance exhibiting phototropism, movement directed by light. |
| PHOTOTROPH | • phototroph n. A photoautotroph. • PHOTOTROPH n. a plant which uses light to generate energy needed to absorb nutrients. |
| PHOTOTROPY | • phototropy n. Phototropism. • PHOTOTROPY n. change of colour due to wavelength of incident light. |
| PHOTOTUBES | • phototubes n. Plural of phototube. • PHOTOTUBE n. an electron tube with a photoemissive cathode. |
| PHOTOTYPED | • phototyped v. Simple past tense and past participle of phototype. • PHOTOTYPE v. to print by this means. |
| PHOTOTYPES | • phototypes n. Plural of phototype. • phototypes v. Third-person singular simple present indicative form of phototype. • PHOTOTYPE v. to print by this means. |
| PHOTOTYPIC | • phototypic adj. Of or pertaining to a phototype or phototypy. • PHOTOTYPIC adj. of or pertaining to a phototype or phototypy. |