All >
Science >
Biotechnology and Genetics >
Food Biotechnology - In tissue culture, the particular constituents for the culture medium, commonly comprising macro- and micro-elements, vitamins, plant hormones, and a carbohydrate source. Some formulations are very specific to the kind of explant or plant species that can be maintained; some are very general.
UN Food and Agriculture Organization - Cite This Source - This Definition - Browse Related Terms: basal, ethylenediamine tetraacetic acid, formulation, inositol, medium, nutrient gradient, nutrient medium
All >
Technology >
Telecommunications - Frequencies from 300 kHz to 3000 kHz. See electromagnetic spectrum.
ATIS - Cite This Source - This Definition - Browse Related Terms: Electromagnetic Spectrum, extremely high frequency (EHF), extremely low frequency (ELF), Frequency, frequency band, frequency spectrum, high frequency (HF), low frequency (LF), spectrum designation of frequency, super high frequency (SHF), tremendously high frequency (THF), ultra high frequency (UHF), ultra low frequency (ULF), very high frequency (VHF), very low frequency (VLF)
All >
Technology >
Telecommunications - In communications systems, the connector at the interface point between the bus interface unit and the terminal, i.e., the medium interface point.
ATIS - Cite This Source - This Definition - Browse Related Terms: access unit interface, attachment unit interface (AUI), BIU, bus interface unit (BIU), network interface unit (NIU), NIU, NTI, trusted network, video teleconferencing unit (VTU)
All >
Technology >
Telecommunications - In communication systems, the location at which the standards for the interface parameters between a terminal and the line facility are implemented.
ATIS - Cite This Source - This Definition - Browse Related Terms: Common Gateway Interface, framed interface, graphical user interface, interface point, net radio interface (NRI), originating connection, point of interface (POI), transparent interface, wireless access mode, wireline access mode
All >
Technology >
Defense - Lasers that radiate power less than 1 MW, normally used to detect, identify, track, and designate a target vehicle.
DoD Missile Defense Agency - Cite This Source - This Definition - Browse Related Terms: ALO, APLE, BDL, CLEO, CVL, DPSSL, EDL, GDL, HPL, LADAR, Laser Detection and Ranging (LADAR), Laser Imaging Radar, Laser Optics, LASERCOM, LCS, LIS, LODE, LRF, LSAT, LTD, LW, MPL, RLG, SBL, SBLRD, SLT, SSL
All >
Technology >
Telecommunications - A hypothetical talker, within a log-normal distribution of talkers, whose volume lies at the medium power of all talkers determining the volume distribution at the point of interest. Note: When the distribution follows a log-normal curve (values expressed in decibels), the mean and standard deviation can be used to compute the medium-power talker. The talker volume distribution follows a log-normal curve and the medium-power talker is uniquely determined by the average talker volume. The medium-power talker volume, V, is given by V = Vo + 0.115
2, where Vo is the average of the talker volume distribution in volume units (vu), and 2 is the variance of the distribution.
ATIS - Cite This Source - This Definition - Browse Related Terms: bel (B), fading distribution, jamming to signal ratio (J/S), par meter, peak-to-average ratio (p/a r), volume unit (vu)
All >
Technology >
Telecommunications - Bit error rate that can be encountered for relatively short time periods (e.g., minutes), due to temporary malfunctions of, for example, transmission equipment. [T1.110-1987]
ATIS - Cite This Source - This Definition - Browse Related Terms: alignment error rate monitoring, bit error rate, bit error ratio (BER), error rate, error ratio, long-term bit error rate, residual error rate, residual error ratio, signal unit error rate monitoring, undetected error rate, undetected error ratio
All >
Medicine >
Cancer - A hormonal anticancer drug that is also used in cancer prevention. It belongs to the family of drugs called progestins.
National Cancer Institute - Cite This Source - This Definition - Browse Related Terms: aminopterin, bicalutamide, buserelin, cladribine, edatrexate, emitefur, goserelin, hydroxyurea, ILX-295501, indium In 111 pentetreotide, losoxantrone, MG98, nimodipine, SR-45023A, tegafur, thioguanine, toremifene, UCN-01
All >
Medicine >
Cancer - A drug used to prevent endometrial cancer. It is also used to treat menstrual disorders and as a form of birth control. It is a form of the female hormone progesterone and belongs to the family of drugs called progestins.
National Cancer Institute - Cite This Source - This Definition - Browse Related Terms: acetaminophen, DPPE, enoxaparin, etidronate, glucocorticoid, lamotrigine, methadone, oxandrolone, oxycodone, pamidronate, pilocarpine, prednisolone, stavudine, theophylline, Warfarin