| BROTHERHOODS | • brotherhoods n. Plural of brotherhood. • BROTHERHOOD n. the state of being brothers. |
| HOMOEOTHERMS | • homoeotherms n. Plural of homoeotherm. • HOMOEOTHERM n. an animal or organism that keeps its body at an almost constant temperature, also HOMEOTHERM, HOMOIOTHERM. |
| HOMOIOTHERMS | • homoiotherms n. Plural of homoiotherm. • HOMOIOTHERM n. a warm-blooded animal, also HOMEOTHERM, HOMOEOTHERM. |
| HOMOIOTHERMY | • homoiothermy n. (Biology) Alternative form of homeothermy. • HOMOIOTHERMY n. the maintenance of a constant body temperature, also HOMEOTHERMISM, HOMEOTHERMY, HOMOTHERMY. |
| HOMOTHERMOUS | • homothermous adj. (Biology) warm-blooded. • HOMOTHERMOUS adj. keeping the same temperature, warm-blooded. |
| HYPOTROCHOID | • hypotrochoid n. (Geometry) A geometric curve traced by a fixed point on the radius line outside one circle which rotates… • HYPOTROCHOID n. the curve traced by a point on the radius, or radius produced, of a circle rolling within another circle. |
| LOPHOPHORATE | • lophophorate adj. (Zoology) Having a lophophore. • lophophorate n. (Zoology) A member of the Lophophorata, a clade of invertebrate animals. • LOPHOPHORATE adj. of or like a lophophore, a ring of ciliated tentacles round the mouth of some sedentary marine animals. |
| ORNITHOMORPH | • ornithomorph n. A figure in ancient art resembling a bird. • ORNITHOMORPH n. a figure or design in the form of a bird. |
| ORTHOMORPHIC | • orthomorphic adj. (Cartography) conformal. • ORTHOMORPHIC adj. of a map projection, maintaining true shape over a small area and scale in every direction. |
| ORTHORHOMBIC | • orthorhombic adj. (Crystallography) Having three unequal axes at right angles. • ORTHORHOMBIC adj. three mutually perpendicular axes of different lengths. |
| PHOTOCHROMIC | • photochromic adj. Of, related to, or produced by photochromism. • photochromic adj. (Chemistry) Relating to the part of a molecule responsible for its photochromism. • PHOTOCHROMIC adj. changing colour, and hence changing the amount of light transmitted when the incident light increases, or decreases. |
| PHOTOTROPHIC | • phototrophic adj. (Biology) That exhibits phototrophy. • PHOTOTROPHIC adj. relating to phototropism, movement directed by light. |
| PHYTOHORMONE | • phytohormone n. A plant hormone. • PHYTOHORMONE n. a plant hormone, regulating growth. |
| PROPHETHOODS | • prophethoods n. Plural of prophethood. • PROPHETHOOD n. the state of being a prophet. |
| PYTHONOMORPH | • pythonomorph n. Any large extinct reptile of the taxon Pythonomorpha. • pythonomorph n. Any member of the taxon Pythonomorpha. • PYTHONOMORPH n. a large marine reptile of the Cretaceous period, with long, scaly body and paddle-shaped limbs. |
| THOROUGHWORT | • thoroughwort n. Any of several plants of the genus Eupatorium. • thoroughwort n. The common boneset (Eupatorium perfoliatum). • THOROUGHWORT n. a wild flower with perfoliate leaves. |
| TROCHOPHORES | • trochophores n. Plural of trochophore. • TROCHOPHORE n. a free-swimming pelagic form of many invertebrates, also TROCHOSPHERE. |