19-letter words containing l, o, c, h, n
- polytene chromosome — a giant, cross-banded chromosome that results from multiple replication of its genetic material with the duplicated chromatin strands remaining closely associated.
- priority scheduling — (operating system) Processes scheduling in which the scheduler selects tasks to run based on their priority as opposed to, say, a simple round-robin. Priorities may be static or dynamic. Static priorities are assigned at the time of creation, while dynamic priorities are based on the processes' behaviour while in the system. For example, the scheduler may favour I/O-intensive tasks so that expensive requests can be issued as early as possible. A danger of priority scheduling is starvation, in which processes with lower priorities are not given the opportunity to run. In order to avoid starvation, in preemptive scheduling, the priority of a process is gradually reduced while it is running. Eventually, the priority of the running process will no longer be the highest, and the next process will start running. This method is called aging.
- professional school — a postgraduate school or college which trains students for a particular profession
- psychoendocrinology — the study of the relationship between the endocrine system and various symptoms or types of mental illness.
- psychological novel — a novel that focuses on the complex mental and emotional lives of its characters and explores the various levels of mental activity.
- psychotechnological — of or relating to psychotechnology
- raise one's hackles — one of the long, slender feathers on the neck or saddle of certain birds, as the domestic rooster, much used in making artificial flies for anglers.
- rancho palos verdes — a town in SW California.
- rap on the knuckles — a mild reprimand or light sentence
- reciprocal exchange — an unincorporated association formed so that its members can participate in reciprocal insurance.
- regular icosahedron — an icosahedron in which each of the faces is an equilateral triangle
- resorcinolphthalein — fluorescein.
- reticuloendothelial — pertaining to, resembling, or involving cells of the reticuloendothelial system.
- rhetorical question — a question asked solely to produce an effect or to make an assertion and not to elicit a reply, as “What is so rare as a day in June?”.
- right circular cone — a cone whose surface is generated by lines joining a fixed point to the points of a circle, the fixed point lying on a perpendicular through the center of the circle.
- run-length encoding — A kind of compression algorithm which replaces sequences ("runs") of consecutive repeated characters (or other units of data) with a single character and the length of the run. This can either be applied to all input characters, including runs of length one, or a special character can be used to introduce a run-length encoded group. The longer and more frequent the runs are, the greater the compression that will be achieved. This technique is particularly useful for encoding black and white images where the data units would be single bit pixels.
- sackcloth and ashes — a public display of extreme grief, remorse, or repentance
- shopping facilities — shops or other retail services
- social anthropology — study of human culture
- southern crab apple — a tree, Malus angustifolia, of the eastern U.S., having oblong leaves, fragrant, pink or rose-colored flowers, and small, round, yellow-green fruit.
- sphere of influence — any area in which one nation wields dominant power over another or others.
- spherical astronomy — the branch of astronomy dealing with the determination of the positions of celestial bodies on the celestial sphere.
- stephen cole kleene — Stephen Kleene
- sulphonium compound — any one of a class of salts derived by the addition of a proton to the sulphur atom of a thiol or thio-ether thus producing a positive ion (sulphonium ion)
- teaching fellowship — a fellowship providing a student in a graduate school with free tuition and expenses and stipulating that the student assume some teaching duties in return.
- telephone directory — a book, directory, or the like, usually containing an alphabetical list of telephone subscribers in a city or other area, together with their addresses and telephone numbers.
- tetrachloroethylene — a colorless, nonflammable, nonexplosive liquid, C 2 Cl 4 , used as a solvent, especially in dry cleaning.
- the channel country — an area of E central Australia, in SW Queensland: crossed by intermittent rivers and subject to both flooding and long periods of drought
- the compassion club — (in Canada) a nonprofit organization that provides uncontaminated cannabis for medical purposes and natural therapies in a safe environment
- the oceanic feeling — a term coined by Sigmund Freud to describe the feeling experienced by people who have religious faith
- the vatican council — the second Ecumenical Council of the Vatican, also known as Vatican II, which sat from 1962 to 1965, and among other things allowed the liturgy to be said in the local language, not Latin
- the whole enchilada — all of it; everything; the entirety of something
- the world of cryton — (TWOC) A BBS for the Acorn Archimedes. Telephone: +44 (1749) 670 030 (24hrs, most speeds).
- therapeutic cloning — the permitted creation of cloned human tissues for surgical transplant
- throw cold water on — having a relatively low temperature; having little or no warmth: cold water; a cold day.
- tie-clip microphone — a small microphone that is clipped to a person's tie
- to the exclusion of — If you do one thing to the exclusion of something else, you only do the first thing and do not do the second thing at all.
- trahison des clercs — a compromising of intellectual integrity, esp. for political reasons
- trickle-down theory — an economic theory that monetary benefits directed especially by the government to big business will in turn pass down to and profit smaller businesses and the general public.
- trooping the colour — a military ceremony, performed by regiments of the British army and the Commonwealth, in which the regimental colour or flag is marched past ranks of troops
- trumpet honeysuckle — an American honeysuckle, Lonicera sempervirens, having spikes of large, tubular flowers, deep-red outside and yellow within.
- trusteeship council — a United Nations body that supervises the government of a territory by a foreign country
- velocity microphone — a microphone in which the output varies according to the instantaneous velocity of the air molecules in the incident sound waves.
- vinylidene chloride — a colorless, volatile, flammable liquid, C 2 H 2 Cl, that is copolymerized chiefly with vinyl chloride to form saran.
- wearable technology — a small computer or advanced electronic device that is worn or carried on the body: the trendiest wearable technologies.
- with flying colours — If you pass a test with flying colours, you have done very well in the test.
- zenithal projection — a type of map projection in which part of the earth's surface is projected onto a plane tangential to it, either at one of the poles (polar zenithal), at the equator (equatorial zenithal), or between (oblique zenithal)