13-letter words containing c, o, r, n, b, e
- elasmobranchs — Plural form of elasmobranch.
- electron beam — a beam or stream of electrons emitted by a single source that move in the same direction and at the same speed
- electron tube — (electronics) (Or tube, vacuum tube, UK: valve, electron valve, thermionic valve, firebottle, glassfet) An electronic component consisting of a space exhausted of gas to such an extent that electrons may move about freely, and two or more electrodes with external connections. Nearly all tubes are of the thermionic type where one electrode, called the cathode, is heated, and electrons are emitted from its surface with a small energy (typically a Volt or less). A second electrode, called the anode (plate) will attract the electrons when it is positive with respect to the cathode, allowing current in one direction but not the other. In types which are used for amplification of signals, additional electrodes, called grids, beam-forming electrodes, focussing electrodes and so on according to their purpose, are introduced between cathode and plate and modify the flow of electrons by electrostatic attraction or (usually) repulsion. A voltage change on a grid can control a substantially greater change in that between cathode and anode. Unlike semiconductors, except perhaps for FETs, the movement of electrons is simply a function of electrostatic field within the active region of the tube, and as a consequence of the very low mass of the electron, the currents can be changed quickly. Moreover, there is no limit to the current density in the space, and the electrodes which do dissapate power are usually metal and can be cooled with forced air, water, or other refrigerants. Today these features cause tubes to be the active device of choice when the signals to be amplified are a power levels of more than about 500 watts. The first electronic digital computers used hundreds of vacuum tubes as their active components which, given the reliability of these devices, meant the computers needed frequent repairs to keep them operating. The chief causes of unreliability are the heater used to heat the cathode and the connector into which the tube was plugged. Vacuum tube manufacturers in the US are nearly a thing of the past, with the exception of the special purpose types used in broadcast and image sensing and displays. Eimac, GE, RCA, and the like would probably refer to specific types such as "Beam Power Tetrode" and the like, and rarely use the generic terms. The cathode ray tube is a special purpose type based on these principles which is used for the visual display in television and computers. X-ray tubes are diodes (two element tubes) used at high voltage; a tungsten anode emits the energetic photons when the energetic electrons hit it. Magnetrons use magnetic fields to constrain the electrons; they provide very simple, high power, ultra-high frequency signals for radar, microwave ovens, and the like. Klystrons amplify signals at high power and microwave frequencies.
- embryogenetic — embryogenic
- embryonically — In an embryonic way.
- encourageable — Able to be encouraged; suggestible.
- endobronchial — (anatomy) Pertaining to the lining of the bronchi.
- exacerbations — Plural form of exacerbation.
- ge-pano-carib — a linguistic phylum comprising a large number of aboriginal languages with scattered distribution in South America east of the Andes.
- hertogenbosch — 's Hertogenbosch.
- in-observance — lack of attention; inattention; heedlessness: drowsy inobservance.
- inconformable — Obsolete form of unconformable.
- inconquerable — That cannot be conquered; unconquerable.
- inconstruable — unable to be construed
- inconversable — (obsolete) uncommunicative; reserved.
- inconvertible — (of paper money) not capable of being converted into specie.
- inconvertibly — In an inconvertible manner.
- incorrigibles — Plural form of incorrigible.
- incorruptable — Misspelling of incorruptible.
- incorruptible — not corruptible: incorruptible integrity.
- indolebutyric — as in indolebutyric acid, a synthetic plant growth regulator
- knickerbocker — a descendant of the Dutch settlers of New York.
- lacrimal bone — a small, thin, membrane bone forming the front part of the inner wall of each orbit.
- melbourne cup — an annual horse race run in Melbourne, since 1861
- membranaceous — Resembling or having properties of a membrane.
- microbalances — Plural form of microbalance.
- microbusiness — A business that operates on a very small scale.
- misobservance — a failure to observe thoroughly or properly
- neurofeedback — The presentation of realtime feedback on brainwave activity, as measured by sensors on the scalp, sometimes offered as a means of therapy.
- newport beach — a city in SW California, SE of Los Angeles.
- nitrobacteria — Plural form of nitrobacterium.
- non-carbonate — a salt or ester of carbonic acid.
- non-obstetric — of or relating to the care and treatment of women in childbirth and during the period before and after delivery.
- non-reducible — capable of being reduced.
- non-revocable — that may be revoked.
- nonaerobiotic — Able to live without oxygen from the atmosphere.
- noncarbonated — Not carbonated; lacking carbonation.
- noncarbonates — Plural form of noncarbonate.
- noncomparable — not comparable
- noncorrodible — (of a metal) not capable of rusting, decaying, or eroding
- nonobservance — absence or lack of observance.
- nonprescribed — Not prescribed.
- nonrecordable — Not recordable.
- nonrecyclable — Not recyclable.
- object oberon — Oberon plus classes and methods by H. Moessenboeck & J. Templ, 1989. See Oberon-2.
- obstetricians — Plural form of obstetrician.
- octane number — (of gasoline) a designation of antiknock quality, numerically equal to the percentage of isooctane by volume in a mixture of isooctane and normal heptane that matches the given gasoline in antiknock characteristics.
- overabundance — an excessive amount or abundance; surfeit: an overabundance of sugar in the diet.
- overbalancing — Present participle of overbalance.
- polycarbonate — a synthetic thermoplastic resin, a linear polymer of carbonic acid, used for molded products, films, and nonbreakable windows.