| photosynthesis |
the process in plants by which sunlight, with the help of chlorophyll, is converted to chemical energy that is used to synthesize inorganic compounds into organic ones, esp. sugars. |
| photosynthesize |
to bring about or produce by the process of photosynthesis. |
| phototaxis |
the self-determined movement of an organism toward or away from light. |
| phototropic |
of, relating to, or influenced by phototropism. |
| phototropism |
the tendency of plants to turn or grow in a particular direction in response to light. |
| phototypesetting |
see "photocomposition." |
| photovoltaic |
pertaining to, producing, or utilizing voltage that has been generated using radiant energy. |
| photovoltaic cell |
a cell that produces electromotive force when it is exposed to radiation, esp. light; solar cell. |
| phr. |
abbreviation of "phrase." |
| phrasal |
pertaining to or consisting of one or more phrases. |
| phrase |
in grammar, a string of words that has meaning and grammatical order but does not have both a subject and a predicate. [11 definitions] |
| phraseology |
characteristic manner or style of verbal expression. [2 definitions] |
| phrasing |
choice of words; wording. [2 definitions] |
| -phrenia |
a mental disorder. |
| phrenology |
the study of the configurations of the skull as an indication of a person's character and mental capabilities. |
| phthiriasis |
the condition of being infested with crab lice; pediculosis. |
| phthisis |
a wasting away of the body or a body part, such as tuberculosis of the lungs. |
| phycomycete |
any of several fungi that resemble algae, such as certain molds and mildews. |
| phyla |
pl. of phylum. |
| phylactery |
one of two small leather boxes worn strapped on the left arm and forehead by religious Jewish men during regular morning worship, that contain pieces of parchment bearing passages from Scripture. [2 definitions] |
| -phyll |
leaf. |