13-letter words containing e, i, t, h, r
- kinesitherapy — a movement-based therapy
- kitchen paper — also kitchen roll
- kitchen range — cooker with oven and hob
- kitchen-diner — a kitchen that has an area intended to be used for eating meals, usually because there is no dining room elsewhere
- knight errant — a wandering knight; a knight who traveled widely in search of adventures, to exhibit military skill, to engage in chivalric deeds, etc.
- knight-errant — a wandering knight; a knight who traveled widely in search of adventures, to exhibit military skill, to engage in chivalric deeds, etc.
- ladder stitch — an embroidery stitch in which crossbars at equal distances are produced between two solid ridges of raised work.
- lateral chain — an open chain of atoms attached to an atom of a larger chain, or to a ring.
- lethargically — of, relating to, or affected with lethargy; drowsy; sluggish; apathetic.
- leucitohedron — a trapezohedron
- liberty horse — (in a circus) a riderless horse that performs movements to verbal commands
- life-or-death — life-and-death.
- light cruiser — a naval cruiser having 6-inch (15-cm) guns as its main armament.
- light mineral — any rock-forming mineral that has a specific gravity of less than 2.8 and is generally light in color.
- light reading — reading which is not considered too demanding or intellectual
- light therapy — therapeutic exposure to full-spectrum artificial light that simulates sunlight, used to treat various conditions, as seasonal affective disorder.
- light-hearted — carefree; cheerful; merry: a lighthearted laugh.
- lighter flint — the small piece of flint in a lighter pressure on which creates a spark that ignites the fuel
- lighter fluid — a combustible fluid used in cigarette, cigar, and pipe lighters.
- literacy hour — (in England and Wales) a daily reading and writing lesson that was introduced into the national primary school curriculum in 1998 to raise standards of literacy
- lithotripters — Plural form of lithotripter.
- live together — cohabit
- lobster shift — Also called lobster trick. dogwatch (def 2).
- lucifer match — friction match.
- macrolecithal — megalecithal.
- 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.
- martin luther — Martin [mahr-tn;; German mahr-teen] /ˈmɑr tn;; German ˈmɑr tin/ (Show IPA), 1483–1546, German theologian and author: leader, in Germany, of the Protestant Reformation.
- martini-henry — a breech-loaded .45 caliber rifle adopted in 1871 as the standard British service weapon, using a center-fire metallic cartridge filled with black powder.
- mass hysteria — a condition affecting a group of persons, characterized by excitement or anxiety, irrational behavior or beliefs, or inexplicable symptoms of illness.
- master switch — a switch that can be used to turn on or off the supply of electricity to a building or to certain equipment
- matthew paris — Matthew, Matthew of Paris.
- mephobarbital — The drug methylphenobarbital.
- merchant ship — law: commercial vessel
- messerschmitt — any of several types of fighter aircraft extensively used by the German air force in World War II, especially the ME-109.
- metachromasia — A characteristic change in the colour of staining carried out in biological tissues, exhibited by certain aniline dyes when they bind to particular substances present in these tissues, called chromotropes.
- metachromatic — change of color, especially that due to variation in the temperature of a body.
- metaheuristic — An experimental heuristic method for solving a general class of computational problems by combining user procedures in the hope of obtaining a more efficient or robust procedure.
- metamorphosis — Biology. a profound change in form from one stage to the next in the life history of an organism, as from the caterpillar to the pupa and from the pupa to the adult butterfly. Compare complete metamorphosis.
- metamorphotic — Of or relating to metamorphosis.
- metanephridia — Plural form of metanephridium.
- metaphoricity — The power of a metaphor.
- meths drinker — a person who drinks methylated spirits
- michelin star — a mark of distinction awarded by the Michelin travel guides to a restaurant in recognition of the high quality of its cooking. A restaurant may receive one, two, or three stars, representing very good, exceptional, or exquisite cuisine, respectively
- microlecithal — having a small amount of yolk, as certain eggs or ova.
- microswitches — Plural form of microswitch.
- microteaching — a scaled-down teaching procedure with a few students under controlled conditions, often videotaped in order to analyze teaching techniques and develop new teaching skills.
- miner's right — a licence to prospect for minerals, esp gold
- mineral pitch — asphalt.