21-letter words containing o, d, n, t, m, a
- designated employment — (in Britain) any of certain kinds of jobs reserved for handicapped workers under the Disabled Persons (Employment) Act 1944
- development education — an area of study that aims to give pupils an understanding of their involvement in world affairs
- developmental biology — the study of the development of multicellular organisms, including the study of the earliest stages of embryonic structure and tissue differentiation
- dew-point temperature — the temperature to which air must be cooled, at a given pressure and water-vapor content, for it to reach saturation; the temperature at which dew begins to form.
- diapason normal pitch — a standard of pitch in which A above middle C is established at 435 vibrations per second.
- differential geometry — the branch of mathematics that deals with the application of the principles of differential and integral calculus to the study of curves and surfaces.
- disassortative mating — the reproductive pairing of individuals that have traits more dissimilar than would likely be the case if mating were random (contrasted with assortative mating).
- discriminant function — a linear function of measurements of different properties of an object or event that is used to assign the object or event to one population or another (discriminant analysis)
- disk operating system — DOS.
- draft once reuse many — (jargon) (DORUM) Reusing parts of a document to produce parts of an entirely new document. The term normally refers to text documents but the practise is equally common in programming.
- electromagnetic field — a field of force associated with a moving electric charge equivalent to an electric field and a magnetic field at right angles to each other and to the direction of propagation
- endoplasmic reticulum — an extensive intracellular membrane system whose functions include synthesis and transport of lipids and, in regions where ribosomes are attached, of proteins
- 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
- environmental studies — a university course studying the environment and related issues
- faculty board meeting — a meeting of the governing body of a faculty
- foot-in-mouth disease — the habit of making inappropriate, insensitive, or imprudent statements.
- fragmentation grenade — a grenade with a heavy metal casing that shatters, on exploding, into fragments that travel at high speed and with great force.
- from dan to beersheba — from one end of Israel to the other: Judg. 20:1
- game of cat and mouse — In a fight or contest, if one person plays cat and mouse, or a game of cat and mouse, with the other, the first person tries to confuse or deceive the second in order to defeat them.
- gender disappointment — a feeling of depression or anxiety experienced by an expectant parent when the gender of the baby does not match his or her preference
- gentleman of the road — a highwayman.
- government department — a sector of a national or state government that deals with a particular area of interest
- ground-effect machine — ACV (def 2).
- host command facility — (operating system) (HCF) Used to access IBM S/36 and AS/400 computers from a mainframe.
- immediate constituent — one of the usually two largest constituents of a construction: The immediate constituents of He ate his dinner are he and ate his dinner; of ate his dinner are ate and his dinner; etc. Abbreviation: IC.
- in good circumstances — (of a person) in a good financial situation
- in-complete dominance — the appearance in a heterozygote of a trait that is intermediate between either of the trait's homozygous phenotypes.
- industrial misconduct — behaviour by an employee that is considered to be negligent or irregular to such an extent that disciplinary action may be taken, usually by agreement between management and the employee's representatives
- jordan-holder theorem — the theorem that for any two composition series of a group, an isomorphism exists between the corresponding quotient groups of each series, taken in some specified order.
- jump on the bandwagon — do sth because it is popular
- 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)
- lay at someone's door — a movable, usually solid, barrier for opening and closing an entranceway, cupboard, cabinet, or the like, commonly turning on hinges or sliding in grooves.
- lie at someone's door — a movable, usually solid, barrier for opening and closing an entranceway, cupboard, cabinet, or the like, commonly turning on hinges or sliding in grooves.
- lost-and-found column — a column in a newspaper that carries advertisements from people who have lost or found things
- made of sterner stuff — If you say that someone is made of sterner stuff, you mean that they have a strong personality and are capable of overcoming difficulties and problems.
- magneto-optical drive — magneto-optical disk
- magnetofluid dynamics — magnetohydrodynamics.
- magnetoplasmadynamics — magnetohydrodynamics.
- maidenhair spleenwort — an evergreen fern, Asplenium trichomanes, abundant in woody areas of the North Temperate Zone, having thickly clustered fronds.
- majority shareholding — a holding of more than half a company's shares
- make (both) ends meet — to manage to keep one's expenses within one's income
- maryland yellowthroat — (in former systems of nomenclature) the common yellowthroat, Geothlypis trichas, especially the eastern U.S. subspecies.
- mean square deviation — variance (def 3).
- mechanical solidarity — social cohesiveness that is based on shared activities, beliefs, and experiences and is characteristic of simple traditional societies.
- medium access control — Media Access Control
- meter-kilogram-second — of or relating to the system of units in which the meter, kilogram, and second are the principal units of length, mass, and time. Abbreviation: mks, MKS.
- metropolitan district — any of the districts making up the metropolitan counties of England: since 1986 they have functioned as unitary authorities, forming the sole principal tier of local government. Each metropolitan district has an elected council responsible for education, social services, etc
- modern apprenticeship — an arrangement that allows a school leaver to gain vocational qualifications while being trained in a job
- monochloroacetic acid — chloroacetic acid.
- motherwell and wishaw — a burgh in the Motherwell district, in S Scotland.