13-letter words containing h, i, m, a, t
- hypermagnetic — (physics) Extremely magnetic.
- hypermetrical — Hypermetric.
- hypermetropia — a condition of the eye in which parallel rays are focused behind the retina, distant objects being seen more distinctly than near ones; farsightedness (opposed to myopia).
- hypermorality — conformity to the rules of right conduct; moral or virtuous conduct.
- hypermutation — (uncountable) Frequent mutation.
- hypernatremia — an abnormally high concentration of sodium in the blood.
- hyperromantic — extremely or excessively romantic
- hypometabolic — Relating to hypometabolism.
- hyponatraemia — a condition in which there is a low concentration of sodium in the blood
- hypsometrical — Of or pertaining to hypsometry.
- hyracotherium — eohippus.
- iatrochemical — relating to iatrochemistry or iatrochemists
- iceman cometh — a play (1946) by Eugene O'Neill.
- idiochromatic — (of a mineral) deriving a characteristic color from its capacity to absorb certain light rays.
- immunity bath — the giving of testimony that is self-incriminating in order to avail oneself of the immunity granted a witness.
- immunotherapy — treatment designed to produce immunity to a disease or enhance the resistance of the immune system to an active disease process, as cancer.
- impact wrench — an electric or pneumatic power wrench with interchangeable toolhead attachments, used for installing and removing nuts, bolts, and screws.
- imperial moth — a yellow moth, Eacles imperialis, having a diagonal band of pinkish brown or purple: the hairy larvae feed on the leaves of hickory, oak, etc.
- in the making — the act of a person or thing that makes: The making of a violin requires great skill.
- inharmonicity — the quality of being inharmonic
- initial rhyme — beginning rhyme.
- isobathytherm — a line on a chart or diagram of a body of water, connecting depths having the same temperature.
- isothermobath — a line drawn on a diagram of a vertical section of the ocean connecting all points having equal temperature.
- kathenotheism — Belief that multiple deities exist, and different deities are supreme among them at different times.
- kinematograph — cinematograph.
- kitchen match — a wooden friction match with a large head, used especially for igniting gas ovens or burners.
- light mineral — any rock-forming mineral that has a specific gravity of less than 2.8 and is generally light in color.
- light quantum — photon.
- lighthouseman — a lighthouse keeper
- logarithmancy — Divination using logarithms.
- lucifer match — friction match.
- lymphadenitis — inflammation of a lymphatic gland.
- lymphatolysis — destruction of lymphatic vessels or of lymphoid tissue.
- lymphoblastic — (US, cytology, immunology) Of or pertaining to a lymphoblast.
- lymphomatosis — lymphoma spread throughout the body.
- machicolation — an opening in the floor between the corbels of a projecting gallery or parapet, as on a wall or in the vault of a passage, through which missiles, molten lead, etc., might be cast upon an enemy beneath.
- machilipatnam — a city in E Andhra Pradesh state, in S India, on the Bay of Bengal: first British trading settlement 1611.
- machinability — The condition of being machinable.
- machine-steel — low-carbon steel that can be easily machined.
- macrolecithal — megalecithal.
- magnetic head — head (def 33).
- make light of — of little weight; not heavy: a light load.
- make off with — take away
- malthusianism — of or relating to the theories of T. R. Malthus, which state that population tends to increase faster, at a geometrical ratio, than the means of subsistence, which increases at an arithmetical ratio, and that this will result in an inadequate supply of the goods supporting life unless war, famine, or disease reduces the population or the increase of population is checked.
- mantis shrimp — any stomatopod crustacean having a pair of appendages modified for grasping prey and resembling those of a mantis.
- mao inhibitor — any of various substances, as isocarboxazid and phenelzine, that block enzymatic breakdown of certain monoamine neurotransmitters: used to treat severe depression. Abbreviation: MAOI.
- maple heights — a city in NE Ohio.
- marbled white — any butterfly of the satyrid genus Melanargia, with panelled black-and-white wings, but technically a brown butterfly; found in grassland
- maria theresa — 1717–80, archduchess of Austria; queen of Hungary and Bohemia 1740–80 (wife of Francis II; mother of Joseph II, Leopold II, Marie Antoinette).
- marsh trefoil — buck bean.