| ENDOTHERMY | • endothermy n. (Biology) A form of thermoregulation in which heat is generated by the organism’s metabolism. • ENDOTHERMY n. surgical introduction of electric needle or knife into tissues. |
| HAEMOCYTES | • haemocytes n. Plural of haemocyte. • HAEMOCYTE n. a blood cell, esp. a red cell, also HEMOCYTE. |
| 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. |
| 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. |
| HEMOPTYSES | • hemoptyses n. Plural of hemoptysis. • HEMOPTYSIS n. the expectoration of blood, due usually to hemorrhage from the mucous membrane of the lungs. |
| HETEROGAMY | • heterogamy n. (Biology) The state of conjugating gametes that are different in size, structure and function. • heterogamy n. (Sociology) Marriage or similar union between people of different sexes, or social strata, such as races. • HETEROGAMY n. the process of fertilization in plants by an indirect or circuitous method. |
| HETERONOMY | • heteronomy n. The political subjection of a community to the rule of another power or to an external law. • heteronomy n. The state of being beholden to external influences. • heteronomy n. (Biology) The condition of being heteronomous. |
| HETERONYMS | • heteronyms n. Plural of heteronym. • HETERONYM n. a word having same spelling but different sound and meaning e.g. lead/lead. |
| HYDROMETER | • hydrometer n. An instrument that floats in a liquid and measures its specific gravity on a scale. • HYDROMETER n. an instrument for measuring the specific gravity of liquids. |
| HYETOMETER | • hyetometer n. Rain gauge. • HYETOMETER n. an instrument for measuring rainfall. |
| HYGROMETER | • hygrometer n. (Meteorology) An instrument that measures the humidity of the air or other gases, especially the relative humidity. • HYGROMETER n. an instrument for measuring air moisture. |
| HYPSOMETER | • hypsometer n. An instrument that measures altitude indirectly by measuring the boiling point of water (which varies… • HYPSOMETER n. an instrument for measuring height of trees through triangulation. |
| MESOPHYTES | • mesophytes n. Plural of mesophyte. • MESOPHYTE n. a land plant growing in an environment with moderate moisture. |
| METATHEORY | • metatheory n. A theory about a theory. • metatheory n. Examination of the theory or theories relating to a certain field of study or endeavour. • METATHEORY n. philosophical discussion of the foundations, structure, or results of some theory, such as metamathematics. |