| PERIGEE | • perigee n. (Astronomy) The point, in an orbit about the Earth, that is closest to the Earth: the periapsis of an Earth orbiter. • perigee n. (Astronomy, more generally) The point, in an orbit about any planet, that is closest to the planet… • perigee n. (Possibly archaic outside astrology) The point, in any trajectory of an object in space, where it is… |
| PERIGON | • perigon n. (Geometry) A round angle; a full circle. • perigon n. (Dated) A perianth or a perigonium. • PERIGON n. (Greek) an angle equal to 360 degrees. |
| PERIGEAL | • perigeal adj. Relating to the perigee. • PERIGEAL adj. relating to a perigee, the point of the moon's orbit at which it is nearest the earth, also PERIGEAN. |
| PERIGEAN | • perigean adj. Pertaining to the perigee. • PERIGEAN adj. relating to a perigee, the point of the moon's orbit at which it is nearest the earth, also PERIGEAL. |
| PERIGEES | • perigees n. Plural of perigee. • PERIGEE n. (Greek) the point at which a celestial body is nearest to earth. |
| PERIGONE | • perigone n. (Botany) perianth. • perigone n. In mosses, the involucral bracts of a male flower. • perigone n. (Zoology) A sac surrounding the generative bodies in the gonophore of a hydroid. |
| PERIGONS | • perigons n. Plural of perigon. • PERIGON n. (Greek) an angle equal to 360 degrees. |
| PERIGYNY | • perigyny n. (Botany) The quality of being perigynous. • PERIGYNY n. a receptacle developed as an open cup. |
| PERIGONES | • perigones n. Plural of perigone. • PERIGONE n. any organ inclosing the essential organs of a flower, also PERIGONIUM. |
| PERIGONIA | • perigonia n. Plural of perigonium. • PERIGONIUM n. any organ inclosing the essential organs of a flower, also PERIGONE. |
| PERIGONIAL | • perigonial adj. Of or related to the perigonium. • PERIGONIAL adj. of or like a perigone, an organ inclosing the essential organs of a flower; a perianth. |
| PERIGONIUM | • perigonium n. (Botany) The sterile parts of a flower; collectively, the sepals and petals (or tepals); the perianth. • perigonium n. (Botany) The modified leaves around the antheridia in a bryophytic plant. • perigonium n. (Dated, zoology) The wall of the sporosac in a hydroid. |
| PERIGYNIES | • PERIGYNY n. a receptacle developed as an open cup. |
| PERIGYNOUS | • perigynous adj. (Botany) Having the stamens, petals or sepals situated around the ovary (especially, on the rim of the… • perigynous adj. (Botany) Having a hypanthium. • PERIGYNOUS adj. of a flower, having the perianth and stamens inserted on a flat or cup-shaped structure which arises below, and is not fused to, the ovary. |
| PERIGASTRIC | • perigastric adj. (Anatomy) Surrounding the stomach. • PERIGASTRIC adj. surrounding the alimentary canal. |
| PERIGENESES | • PERIGENESIS n. reproduction (according to the theory of Ernst Haeckel) by transmission not only of chemical material but of vibrations of plastidules. |
| PERIGENESIS | • perigenesis n. (Biology) A theory which explains inheritance by the transmission of the type of growth force possessed… • PERIGENESIS n. reproduction (according to the theory of Ernst Haeckel) by transmission not only of chemical material but of vibrations of plastidules. |
| PERIGLACIAL | • periglacial adj. (Geomorphology) Of or pertaining to the area around the edge of a glacier. • PERIGLACIAL adj. bordering a glacier. |
| PERIGASTRITIS | • perigastritis n. (Pathology) inflammation of the region surrounding the stomach. • PERIGASTRITIS n. inflammation of the outer surface of the stomach. |
| PERIGASTRITISES | • PERIGASTRITIS n. inflammation of the outer surface of the stomach. |