18-letter words containing s, h, m
- hamilton's problem — Hamiltonian problem
- hand it to someone — to give credit to someone
- handlebar mustache — A handlebar mustache is a long thick mustache with curled ends.
- handyman's special — fixer-upper.
- have one's moments — If you say that someone or something has their moments, you are indicating that there are times when they are successful or interesting, but that this does not happen very often.
- head disk assembly — (hardware, storage) (HDA) A sealed, high capacity mainframe hard disk with integral heads, as opposed to a removable disk.
- heat of combustion — the heat evolved when one mole of a substance is burnt in oxygen at constant volume
- hemicorporectomies — Plural form of hemicorporectomy.
- hemidemisemiquaver — a sixty-fourth note.
- hemorrhoidectomies — Plural form of hemorrhoidectomy.
- hepatosplenomegaly — Enlargement of both the liver and spleen.
- hideyoshi toyotomi — 1536–98, Japanese military dictator (1582–98). He unified all Japan (1590)
- higher mathematics — the advanced portions of mathematics, customarily considered as embracing all beyond ordinary arithmetic, geometry, algebra, and trigonometry.
- histamine headache — cluster headache.
- histocompatibility — the condition of having antigenic similarities such that cells or tissues transplanted from one (the donor) to another (the recipient) are not rejected.
- histomorphological — histology.
- home of the hirsel — Baron, title of Sir Alec Douglas-Home, formerly 14th Earl of Home. 1903–95, British Conservative statesman: he renounced his earldom to become prime minister of Great Britain and Northern Ireland (1963–64); foreign secretary (1970–74)
- homelands movement — the programme to resettle native Australians on their tribal lands
- homeowner's policy — a form of home insurance that provides compensation for damage, loss, or injury of property, personal belongings, or persons due to fire, theft, accidents, etc.
- honeysuckle family — the plant family Caprifoliaceae, typified by shrubs and woody vines having opposite leaves, clusters of usually flaring, narrow, tubular flowers, and various types of fruit, and including the elder, honeysuckle, snowberry, twinflower, and viburnum.
- honour moderations — (at Oxford University) the first public examination, in which candidates are placed into one of three classes of honours
- human rights group — a group that campaigns for human rights
- hungry programmers — (body) A group of programmers producing free software.
- hydroxytryptamines — Plural form of hydroxytryptamine.
- hyperaldosteronism — aldosteronism.
- hypercholesteremia — Alternative spelling of hypercholesteraemia.
- hypermodern school — a style of chess characterized by control of the centre from the flanks
- hypodermic syringe — a small glass piston or barrel syringe having a detachable, hollow needle for use in injecting solutions subcutaneously.
- hypoparathyroidism — Diminished concentration of parathyroid hormone in the blood, which causes deficiencies of calcium and phosphorus compounds in the blood and results in muscular spasms.
- immunohistological — the microscopic study of tissues with the aid of antibodies that bind to tissue components and reveal their presence.
- in abraham's bosom — at rest with one's dead ancestors
- in company with sb — If you feel, believe, or know something in company with someone else, you both feel, believe, or know it.
- in comparison with — when compared to
- in someone's shoes — an external covering for the human foot, usually of leather and consisting of a more or less stiff or heavy sole and a lighter upper part ending a short distance above, at, or below the ankle.
- in the name of sth — If you do something in the name of an ideal or an abstract thing, you do it in order to preserve or promote that thing.
- in the same breath — the air inhaled and exhaled in respiration.
- inner automorphism — an automorphism that maps an element x into an element of the form axa −1 where a −1 is the inverse of a.
- isothermal process — a process that takes place without change in temperature.
- isthmus of corinth — a narrow strip of land between the Gulf of Corinth and the Saronic Gulf: crossed by the Corinth Canal making navigation possible between the gulfs
- james-lange theory — a theory that emotions are caused by bodily sensations; for example, we are sad because we weep
- jump through hoops — If someone makes you jump through hoops, they make you do lots of difficult or boring things in order to please them or achieve something.
- king-of-the-salmon — a ribbonfish, Trachypterus altivelis, of northern parts of the Pacific Ocean.
- kitchen-sink drama — a type of drama of the 1950s depicting the sordid aspects of domestic reality
- lagrange's theorem — the theorem that the order of each subgroup of a finite group is a factor of the order of the group.
- light displacement — the weight of a ship with all its permanent equipment, excluding the weight of cargo, persons, ballast, dunnage, and fuel, but usually including the weight of permanent ballast and water used to operate steam machinery.
- limburger (cheese) — a semisoft cheese of whole milk, with a strong odor and flavor, made originally in Limburg, Belgium
- list comprehension — (functional programming) An expression in a functional language denoting the results of some operation on (selected) elements of one or more lists. An example in Haskell: This returns all pairs of numbers (x,y) where x and y are elements of the list 1, 2, ..., 10, y <= x and their sum is less than 10. A list comprehension is simply "syntactic sugar" for a combination of applications of the functions, concat, map and filter. For instance the above example could be written: The term "list comprehension" appears in the references below. The earliest reference to the notation is in Rod Burstall and John Darlington's description of their language, NPL. David Turner subsequently adopted this notation in his languages SASL, KRC and Miranda, where he has called them "ZF expressions", set abstractions and list abstractions (in his 1985 FPCA paper [Miranda: A Non-Strict Functional Language with Polymorphic Types]).
- literae humaniores — (at Oxford University) the faculty concerned with Greek and Latin literature, ancient history, and philosophy; classics
- logarithmic spiral — log r = aθ
- logarithmus dualis — (mathematics) (ld) Latin for logarithm base two. More commonly written as "log" with a subscript "2". Roughly the number of bits required to represent an integer.