21-letter words containing b, a, t, h
- goldbach's conjecture — the conjecture that every even number greater than two is the sum of two prime numbers
- greenwich observatory — the national astronomical observatory of Great Britain, housed in a castle in E Sussex; formerly located at Greenwich.
- harriet beecher stowe — Harriet (Elizabeth) Beecher, 1811–96, U.S. abolitionist and novelist.
- have heard sth before — If you say that you have heard something before, you mean that you are not interested in it, or do not believe it, or are not surprised about it, because you already know about it or have experienced it.
- hierarchical database — (database) A kind of database management system that links records together like a family tree such that each record type has only one owner, e.g. an order is owned by only one customer. Hierarchical structures were widely used in the first mainframe database management systems. However, due to their restrictions, they often cannot be used to relate structures that exist in the real world.
- horizontal stabilizer — the horizontal surface, usually fixed, of an aircraft empennage, to which the elevator is hinged.
- horizontal tabulation — (character) (tab, Control-I, HT, ASCII 9) A character which when displayed or printed causes the following character to be placed at the next "tabstop" - the column whose number is a multiple of the current tab width. Commonly (especially in Unix(?)) the tab width is eight, so, counting from the left margin (column zero), the tab stops are at columns 8, 16, 24, up to the width of the screen or page. A tab width of four or two is often preferred when indenting program source code to conserve indentation. Represented as "\t" in C, Unix, and derivatives.
- hubble classification — a method of classifying galaxies depending on whether they are elliptical, spiral, barred spiral, or irregular
- johann sebastian bach — Johann Sebastian [yoh-hahn si-bas-chuh n;; German yoh-hahn zey-bahs-tee-ahn] /ˈyoʊ hɑn sɪˈbæs tʃən;; German ˈyoʊ hɑn zeɪˈbɑs tiˌɑn/ (Show IPA), 1685–1750, German organist and composer.
- joseph bonaparte gulf — an inlet of the Timor Sea in N Australia. Width: 360 km (225 miles)
- jump on the bandwagon — do sth because it is popular
- just a bunch of disks — (jargon, storage) (JBOD, or "Just a Bunch of Drives") A storage subsystems using multiple independent disk drives, as opposed to one form of RAID or another. For example, Unisys open storage provides JBOD in both SCSI and fibre channel interfaces.
- keep the ball rolling — a spherical or approximately spherical body or shape; sphere: He rolled the piece of paper into a ball.
- 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)
- laboratory technician — sb who assists in a laboratory
- lady macbeth strategy — a strategy in a takeover battle in which a third party makes a bid acceptable to the target company, appearing to act as a white knight but subsequently joining forces with the original (unwelcome) bidder
- lambeth quadrilateral — the four essentials agreed upon at the Lambeth Conference of 1888 for a United Christian Church, namely, the Holy Scriptures, the Apostles' Creed, the sacraments of baptism and Holy Communion, and the historic episcopate
- lap and shoulder belt — a car seat belt
- leave holding the bag — a container or receptacle of leather, plastic, cloth, paper, etc., capable of being closed at the mouth; pouch.
- leave sb in the lurch — If someone leaves you in the lurch, they go away or stop helping you at a very difficult time.
- maître d'hôtel butter — melted butter mixed with parsley and lemon juice
- make (both) ends meet — to manage to keep one's expenses within one's income
- northumberland strait — the part of the Gulf of St. Lawrence that separates Prince Edward Island from New Brunswick and Nova Scotia, in SE Canada. About 200 miles (320 km) long; 9–30 miles (15–48 km) wide.
- not a patch on sb/sth — If you say that someone or something is not a patch on another person or thing, you mean that they are not as good as that person or thing.
- not care a hang about — to not care the least bit about
- not hold one's breath — If you say that you won't hold your breath, you mean that you do not expect something to happen even though someone has suggested that it might.
- on o's best behaviour — If someone is on their best behaviour, they are trying very hard to behave well.
- pipelined burst cache — Pipeline Burst Cache
- propantheline bromide — a substance, C 2 3 H 3 0 BrNO 3 , used in the treatment of peptic ulcers.
- public health service — the agency that is responsible for the health of the general public
- push the panic button — an alarm button for use in an emergency, as to summon help.
- put sb in their place — If you put someone in their place, you show them that they are less important or clever than they think they are.
- rayleigh distribution — (mathematics) A curve that yields a good approximation to the actual labour curves on software projects.
- reciprocal inhibition — the theory that the pairing of an anxiety-provoking stimulus with anxiety-reducing reactions will weaken the association between the stimulus and the anxiety.
- rectangular hyperbola — a hyperbola with perpendicular asymptotes
- rehabilitation centre — a centre or clinic where people with an alcohol or drug addiction are treated
- reverberation chamber — a room with walls that reflect sound. It is used to make acoustic measurements and as a source of reverberant sound to be mixed with direct sound for recording or broadcasting
- salam-weinberg theory — the electroweak theory.
- satisficing behaviour — the form of behaviour demonstrated by firms who seek satisfactory profits and satisfactory growth rather than maximum profits
- sealed-beam headlight — a headlight in which the reflector and lens are hermetically sealed together with the filament in a single unit.
- single spanish burton — a tackle having a runner as well as the fall supporting the load, giving a mechanical advantage of three, neglecting friction.
- snr bandwidth product — (communications) The integral of the SNR over frequency. The SNR bandwidth product is an important limit in the capacity of a communication channel.
- sodium metabisulphite — an inorganic compound with the chemical formula Na2S2O5 that is used as a preservative, antioxidant and disinfectant
- space shuttle orbiter — orbiter (def 1).
- spicebush swallowtail — a swallowtail butterfly, Papilio troilus, having a dark body with yellow spots on the forewings and greenish hind wings.
- splice the main brace — to join together or unite (two ropes or parts of a rope) by the interweaving of strands.
- steer clear of sb/sth — If you steer clear of someone or something, you deliberately avoid them.
- sympathetic vibration — a vibration induced by resonance.
- take sb at their word — If you take someone at their word, you believe what they say, when they did not really mean it or when they meant something slightly different.
- take sb/sth seriously — If you take someone or something seriously, you believe that they are important and deserve attention.