15-letter words containing o, b, t
- obsidian dating — a method of dating obsidian artifacts or debitage by calculating how long it has taken to produce a given thickness of a hydration layer within such matter.
- obstacle course — a military training area having obstacles, as hurdles, ditches, and walls, that must be surmounted or crossed in succession.
- obstructionists — Plural form of obstructionist.
- obstructiveness — The characteristic of being obstructive.
- obtuse triangle — a triangle with one obtuse angle.
- octanitrocubane — (organic compound) A high explosive derived from cubane.
- oil-based paint — any paint made with a drying oil or solvent such as linseed
- old boy network — an exclusive network that links members of a profession, social class, or organization or the alumni of a particular school through which the individuals assist one another in business, politics, etc.
- old-boy network — an exclusive network that links members of a profession, social class, or organization or the alumni of a particular school through which the individuals assist one another in business, politics, etc.
- old-established — established for a long time
- oldenbarneveldt — Johan van. 1547–1619, Dutch statesman, regarded as a founder of Dutch independence; the leading figure (from 1586) in the United Provinces of the Netherlands: executed by Maurice of Nassau
- omnibus edition — a television or radio programme consisting of two or more programmes broadcast earlier in the week
- on the port bow — within 45 degrees to the port of straight ahead
- one of the boys — If a man is described as one of the boys, he is accepted by a group of male friends who do things that are thought of as typically masculine.
- opening batsman — a player who bats the first ball in cricket
- operating table — table on which surgery is performed
- ophthalmophobia — the fear of being stared at
- opposite number — counterpart; equivalent: New members with an interest in folk art will find their opposite numbers in the association's directory.
- order of battle — the organization or hierarchy of military forces in preparation for a battle.
- orthoboric acid — boric acid (def 1). Compare ortho- (def 2).
- orthopaedic bed — a specially firm bed designed to help correct or ameliorate the discomfort of disorders of the spine and joints
- out of business — If a shop or company goes out of business or is put out of business, it has to stop trading because it is not making enough money.
- out of the blue — the pure color of a clear sky; the primary color between green and violet in the visible spectrum, an effect of light with a wavelength between 450 and 500 nm.
- outer barrister — a barrister belonging to the outer bar.
- outside the box — a container, case, or receptacle, usually rectangular, of wood, metal, cardboard, etc., and often with a lid or removable cover.
- overthrust belt — an elongate area in which thick rock layers have been pushed over one another by compressional forces within the earth's crust.
- oxyphenbutazone — an anti-inflammatory treatment for arthritis or bursitis
- parti québécois — (in Canada) a political party in Quebec, formed in 1968 and originally advocating the separation of Quebec from the rest of the country
- pat on the back — to strike lightly or gently with something flat, as with a paddle or the palm of the hand, usually in order to flatten, smooth, or shape: to pat dough into flat pastry forms.
- pattern bombing — aerial bombing in which bombs are dropped on a target in a predetermined pattern.
- paurometabolous — designating or of a group of insect orders, as orthopterans or hemipterans, in which metamorphosis to the adult state from the juvenile state is gradual and without any sudden, radical change of body form
- petit bourgeois — a person who belongs to the petite bourgeoisie.
- petty bourgeois — petit bourgeois
- philip the bold — 1342–1404, duke of Burgundy (1363–1404), noted for his courage at Poitiers (1356) in the Hundred Years' War: regent of France for his nephew Charles VI (1368–88, 1392–1404)
- photodegradable — (of a substance) capable of being broken down by light.
- pink-shirt book — (publication) "The Peter Norton Programmer's Guide to the IBM PC". The original cover featured a picture of Peter Norton with a silly smirk on his face, wearing a pink shirt. Perhaps in recognition of this usage, the current edition has a different picture of Norton wearing a pink shirt. See also book titles.
- platinum blonde — a person, especially a girl or woman, whose hair is of a pale blond or silver color, usually colored artificially by bleaching or dyeing.
- plug compatible — of or relating to computers or peripheral devices that are functionally equivalent to, and may be substituted for, other models.
- plug-compatible — of or relating to computers or peripheral devices that are functionally equivalent to, and may be substituted for, other models.
- polycarboxylate — a salt or ester of a polycarboxylic acid. Polycarboxylate esters are used in certain detergents
- polyisobutylene — a polymer of isobutylene, used chiefly in the manufacture of synthetic rubber.
- portable pixmap — (file format) (PPM) A colour image file format. A PPM file contains the following: a two character "{magic number}" - "P3", the width in pixels, the height in pixels, the maximum colour component value, HEIGHT rows of WIDTH {pixels}. The rows are ordered from top to bottom with the pixels in each row ordered from left to right. Each pixel is represented as three values for red, green, and blue. All parts are separated by whitespace and numbers are in decimal ASCIII representation. A zero pixel component means that colour is absent. Characters from a "#" to the next end-of-line are ignored and no line should be longer than 70 characters. Here is an example of a small pixmap in this format: P3 # feep.ppm 4 4 15 0 0 0 0 0 0 0 0 0 15 0 15 0 0 0 0 15 7 0 0 0 0 0 0 0 0 0 0 0 0 0 15 7 0 0 0 15 0 15 0 0 0 0 0 0 0 0 0 A "RAWBITS" variant has magic number "P6", pixel values are stored as plain binary bytes, instead of ASCII decimal and no whitespace is allowed after a single whitespace character after the maximum colour component value which must be less than or equal to 255.
- post office box — (in a post office) a locked compartment into which the mail of a box renter is put to be called for. Abbreviation: POB, P.O.B.
- post-liberation — the act of liberating or the state of being liberated.
- post-office box — (in a post office) a locked compartment into which the mail of a box renter is put to be called for. Abbreviation: POB, P.O.B.
- pot-bellied pig — A pot-bellied pig is a small, dark-colored pig, originally from Vietnam, that is sometimes kept as a pet.
- power breakfast — If business people have a power breakfast, they go to a restaurant early in the morning so that they can have a meeting while they eat breakfast.
- pre-celebration — an act of celebrating.
- pro-abortionist — pro-choice.
- probation order — an order imposed by a magistrate or judge under which an offender is sentenced to probation rather than imprisonment