21-letter words containing o, h, m, i
- decompression chamber — a chamber in which the pressure of air can be varied slowly for returning people from abnormal pressures to atmospheric pressure without inducing decompression sickness
- denominational school — a school associated with a particular religious denomination
- diapason normal pitch — a standard of pitch in which A above middle C is established at 435 vibrations per second.
- do/did you hear (me)? — If you say 'Do you hear?' or 'Did you hear me?' to someone, you are telling them in an angry or forceful way to pay attention to what you are saying.
- earthmoving equipment — machines, such as bulldozers, that are used for excavating and moving large quantities of earth
- electromyographically — By means of, or in terms of, electromyography.
- enharmonic modulation — a change of key achieved by regarding a note in one key as an equivalent note in another. Thus E flat in the key of A flat could be regarded as D sharp in the key of B major
- flip someone the bird — give someone the finger (see phrase under finger)
- foot-in-mouth disease — the habit of making inappropriate, insensitive, or imprudent statements.
- frankfort on the main — a city in W central Germany, on the Main River.
- gastrohepatic omentum — lesser omentum.
- general of the armies — a special rank held by John J. Pershing, equivalent to general of the army.
- get down on something — to procure something, esp in advance of needs or in anticipation of someone else
- get in someone's hair — any of the numerous fine, usually cylindrical, keratinous filaments growing from the skin of humans and animals; a pilus.
- give someone his head — to allow a person greater freedom or responsibility
- give someone the best — to concede someone's superiority
- give someone the bird — to tell someone rudely to depart; scoff at; hiss
- give someone the gate — a movable barrier, usually on hinges, closing an opening in a fence, wall, or other enclosure.
- give someone the slip — to move, flow, pass, or go smoothly or easily; glide; slide: Water slips off a smooth surface.
- gram-molecular weight — gram molecule. Abbreviation: GMW.
- ground-effect machine — ACV (def 2).
- have it coming to one — to deserve what one is about to suffer
- highest common factor — greatest common divisor. Abbreviation: H.C.F.
- home improvement loan — a government loan for house improvements such as insulation, adding a bathroom, or urgent repairs
- homogeneous catalysis — Homogeneous catalysis is catalysis in which the catalyst takes part in the reaction that it increases.
- homolosine projection — an equal-area projection of the world, distorting ocean areas in order to minimize the distortion of the continents.
- hop, skip, and a jump — a short distance: The laundry is just a hop, skip, and a jump away.
- host command facility — (operating system) (HCF) Used to access IBM S/36 and AS/400 computers from a mainframe.
- human papilloma virus — a species of virus that causes genital warts. Abbreviation: HPV.
- humanistic psychology — an approach to psychology that emphasizes emotions and the better understanding of the self in terms of observation of oneself and one's relations with others
- hydraulic accumulator — an apparatus in which gas, usually air, is used as a cushion or shock absorber in a hydraulic system.
- hypercholesterolaemia — the condition of having a high concentration of cholesterol in the blood
- hyperlipoproteinaemia — the condition of having an abnormally high level of lipoproteins in the blood
- hypogammaglobulinemia — A type of immune disorder characterised by a reduction in all types of gamma globulins.
- ilya ilyich mechnikov — Élie [French ey-lee] /French eɪˈli/ (Show IPA), (Ilya Ilyich Mechnikov) 1845–1916, Russian zoologist and bacteriologist in France: Nobel Prize in medicine 1908.
- immunoelectrophoresis — a technique for the separation and identification of mixtures of proteins, consisting of electrophoresis followed by immunodiffusion.
- immunoelectrophoretic — a technique for the separation and identification of mixtures of proteins, consisting of electrophoresis followed by immunodiffusion.
- immunohistochemically — By means of or in regard to immunohistochemistry.
- in more ways than one — You say in more ways than one to indicate that what you have said is intended to have more than one meaning.
- in the course of time — eventually
- information gathering — the process of collecting information about something
- joseph-marie jacquard — (person) /zhoh-zef' mah-ree' zhah-kar'/ (1752-07-07 to 1834-08-07) The inventor of the Jacquard loom.
- knights of st columba — an international, semi-secret fraternal and charitable order for Catholic laymen, which originated in New Haven, Connecticut in 1882 (the Knights of Columbus)
- know someone by sight — If you know someone by sight, you can recognize them when you see them, although you have never met them and talked to them.
- lady of the camellias — French La Dame aux Camélias. a novel (1848) and play (1852) by Alexandre Dumas fils.
- law of thermodynamics — any of three principles variously stated in equivalent forms, being the principle that the change of energy of a thermodynamic system is equal to the heat transferred minus the work done (first law of thermodynamics) the principle that no cyclic process is possible in which heat is absorbed from a reservoir at a single temperature and converted completely into mechanical work (second law of thermodynamics) and the principle that it is impossible to reduce the temperature of a system to absolute zero in a finite number of operations (third law of thermodynamics)
- light armored vehicle — an eight-wheeled armored reconnaissance car with a 25mm cannon, in service with the U.S. Army and Marine Corps in the 1980s.
- macintosh common lisp — (language) (MCL) Common Lisp for the Apple Macintosh. Guillaume Cartier, of the Mathematics Department at UQAM, Canada, has written some libraries.
- macintosh file system — (file system) A file on the Macintosh consists of two parts, called forks. The "data fork" contains the data which would normally be stored in the file on other operating systems. The "resource fork" contains a collection of arbitrary attribute/value pairs, including program segments, icon bitmaps, and parametric values. Yet more information regarding Macintosh files is stored by the Finder in a hidden file, called the "Desktop Database". Because of the complications in storing different parts of a Macintosh file in non-Macintosh file systems that only handle consecutive data in one part, it is common to only send the Data fork or to convert the Macintosh file into some other format before transferring it.
- maidenhair spleenwort — an evergreen fern, Asplenium trichomanes, abundant in woody areas of the North Temperate Zone, having thickly clustered fronds.