| phellogen |
in woody plants, a tissue layer that lies just beneath the outer bark and generates the outer bark cells; cork cambium. |
| phenacetin |
acetophenetidin. |
| phenix |
variant of phoenix. |
| pheno- |
shining; showing. [2 definitions] |
| phenobarbital |
an odorless white crystalline powder that is used as a sedative, hypnotic, and antispasmodic. |
| phenocopy |
an environmentally produced change in an organism, similar to a mutation but nonhereditary. |
| phenocryst |
a large and usu. conspicuous crystal embedded in volcanic rock containing many such crystals. |
| phenol |
a poisonous white acidic compound found in the tars of wood and coal, or derived from benzene, and used primarily as a disinfectant or antiseptic. [2 definitions] |
| phenolphthalein |
a white or pale yellow crystalline powder that is used in making dyes and as an acid-base indicator and a laxative. |
| phenom |
(slang) an outstandingly talented person, esp. in sports or music. |
| phenomena |
a pl. of phenomenon. |
| phenomenal |
amazing or extraordinary. [3 definitions] |
| phenomenology |
the philosophical study of phenomena, esp. of subjective perceptual experience, as distinguished from ontology, the study of being. |
| phenomenon |
a perceptible occurrence or fact. [3 definitions] |
| phenothiazine |
a greenish organic compound used to expel intestinal worms in domestic animals, as an insecticide, and in the synthesis of tranquilizers. |
| phenotype |
the observable traits of an individual or group, esp. as a function of genetic composition and environment. (Cf. genotype.) [2 definitions] |
| phenyl |
the monovalent radical that forms the basis of several aromatic compounds, such as benzene, phenol, and aniline. |
| phenylalanine |
an essential amino acid that is a constituent of many proteins. |
| phenylketonuria |
see PKU. |
| pheromone |
any of a group of chemical substances produced by an animal to elicit a response or behavior from another animal of the same species. |
| phew |
a breathy exhalation used to express exhaustion, relief, disgust, or surprise. |