19-letter words containing l, e, c, y, t, h
- parthenogenetically — development of an egg without fertilization.
- particle technology — Particle technology is knowledge and study which relates to particles, and is used in industry.
- phenylethyl alcohol — phenethyl alcohol.
- phenylthiocarbamide — a crystalline, slightly water-soluble solid, C 6 H 5 NHCSNH 2 , that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.
- phthalocyanine blue — a pigment used in painting, derived from copper phthalocyanine and characterized chiefly by its brilliant, dark-blue color and by permanence.
- physical impairment — A physical impairment is a condition in which a part of a person's body is damaged or is not working properly.
- physical sequential — (file format) (PS, QSAM, Queued Sequential Access Method) The simplest data set on an IBM mainframe. Sequential files can only be read or written from the beginning: they do not support random access.
- political geography — the branch of human geography that deals with the relationship between political processes and spatial structures (regions, territories, etc)
- polyethylene glycol — any of a series of polymers of ethylene glycol, having a molecular weight of from about 200 to 6000, obtained by condensation of ethylene glycol or of ethylene oxide and water, used as an emulsifying agent and lubricant in ointments, creams, etc.
- polyphonic ringtone — (in mobile phones) a ringtone in which more than one musical note is played at the same time
- 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.
- psychotechnological — of or relating to psychotechnology
- rayleigh scattering — the scattering of light by particles that are very small in relation to the wavelength of the light, and in which the intensity of the scattered light varies inversely with the fourth power of the wavelength.
- research laboratory — place for scientific experimentation
- simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
- sodium hypochlorite — a pale-green, crystalline compound, NaOCl, unstable in air, soluble in cold water, decomposes in hot water: used as a bleaching agent for paper and textiles, in water purification, in household use, and as a fungicide.
- solid-state physics — the branch of physics that deals with the macroscopic physical properties of matter, especially solids; the study of the electromagnetic, structural, and thermodynamic properties of solids.
- spherical astronomy — the branch of astronomy dealing with the determination of the positions of celestial bodies on the celestial sphere.
- 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 world of cryton — (TWOC) A BBS for the Acorn Archimedes. Telephone: +44 (1749) 670 030 (24hrs, most speeds).
- theoretical physics — abstract use of physics
- to click your heels — If someone such as a soldier clicks their heels, they make a sound by knocking the heels of their shoes together when saluting or greeting someone.
- 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.
- trumpet honeysuckle — an American honeysuckle, Lonicera sempervirens, having spikes of large, tubular flowers, deep-red outside and yellow within.
- typographical error — an error in printed or typewritten matter resulting from striking the improper key of a keyboard, from mechanical failure, or the like.
- ultrahigh frequency — any frequency between 300 and 3000 megahertz. Abbreviation: UHF, uhf.
- ultramicrochemistry — the branch of microchemistry dealing with minute quantities of material weighing one microgram or less.
- velocity microphone — a microphone in which the output varies according to the instantaneous velocity of the air molecules in the incident sound waves.
- wearable technology — a small computer or advanced electronic device that is worn or carried on the body: the trendiest wearable technologies.