| BLITHESOME | • blithesome adj. Happy or spriteful; carefree. • BLITHESOME adj. gay, merry. |
| EXOTHERMAL | • exothermal adj. Exothermic. • EXOTHERMAL adj. of a chemical reaction, giving out heat, also EXOTHERMIC. |
| GEOTHERMAL | • geothermal adj. Pertaining to heat energy extracted from reservoirs in the earth’s interior. • GEOTHERMAL adj. relating to the internal heat of the earth, also GEOTHERMIC. |
| HEALTHSOME | • healthsome adj. (Archaic) Conducive to good health. • HEALTHSOME adj. wholesome, salubrious. |
| HELIOMETER | • heliometer n. An astronomical instrument, based on a telescope, for measuring the diameter of the sun; now used to… • HELIOMETER n. instrument for measuring apparent diameter of the sun. |
| HELIOMETRY | • heliometry n. The measurement of the diameters of heavenly bodies, their relative distances, etc. • HELIOMETRY n. measurement by use of a heliometer, an instrument for measuring apparent diameter of the sun. |
| HEMATOCELE | • hematocele n. (Pathology) A swelling caused by the collection of blood in a cavity, especially of the membrane covering a testicle. • HEMATOCELE n. a cavity containing blood, also HAEMATOCELE. |
| HEMELYTRON | • hemelytron n. (Anatomy) An insect’s forewing with both membranous and hardened portions. • HEMELYTRON n. an insect forewing thickened at the base, membranous at the apex, also HEMELYTRUM, HEMIELYTRON. |
| MESOTHELIA | • mesothelia n. Plural of mesothelium. • MESOTHELIUM n. squamous cells lining peritoneum, pericardium, and pleura. |
| MOTHERLESS | • motherless adj. Without a (living) mother. • motherless adj. Without mother (mucilaginous substance in fermenting liquid). • motherless adj. (Figurative) Without a history or predecessor. |
| MOTHERLIER | • MOTHERLY adj. maternal. |
| MOTHERLIKE | • motherlike adj. Having the quality or suggestive of a mother; maternal, motherly. |
| MOTHERLODE | • motherlode n. Alternative form of mother lode. • mother-lode n. Alternative form of mother lode. • mother␣lode n. (Geology) A large or rich vein of gold or of another precious mineral from which other branches extend. |
| MOUTHFEELS | • mouthfeels n. Plural of mouthfeel. • MOUTHFEEL n. the sensory perception of a particular food while chewing. |
| SPELEOTHEM | • speleothem n. (Geology) Any secondary mineral, deposited in a natural cave by the action of water. • SPELEOTHEM n. a term for depositional features, such as stalactites and stalagmites, found in caves, also SPELAEOTHEM. |
| THERMOPILE | • thermopile n. (Electronics) An electronic device that converts thermal energy into electrical energy. Usually constructed… • THERMOPILE n. an instrument measuring minute changes in temperature. |
| TUMBLEHOME | • tumblehome n. (Nautical) The inward curve of the topsides of some ship hulls. • tumble␣home v. (Nautical) To incline inward, as the sides of a vessel, above the bends or extreme breadth. • TUMBLEHOME n. the inward curvature of the upper parts of the sides of a vessel at or near the stern. |