baud (Bd)A unit of modulation rate. Note: One baud corresponds to a rate of one unit interval per second, where the modulation rate is expressed as the reciprocal…
Baud RateThe number of times per second a communications channel changes the carrier signal it sends on a phone line.
Baudot codeA synchronous code in which five equal-length bits represent one character. Note 1: The Baudot code, which was developed circa 1880, has been replaced by…
BayA regularly repeating division of a façade, marked by fenestration.
BAY 12-9566An anticancer drug that belongs to the family of drugs called angiogenesis inhibitors.
BAY 43-9006A drug used to treat advanced kidney cancer and a type of liver cancer that cannot be removed by surgery.
BAY 56-3722A substance that is being studied in the treatment of cancer. It belongs to the family of drugs called camptothecins.
BAY 59-8862A substance that is being studied in the treatment of cancer. It belongs to the family of drugs called taxanes.
Bay WindowA projecting form containing windows that rises from the ground or from some other support, such as a porch roof; see also oriel.
Bay-DeltaSacramento/San Joaquin River Delta and San Francisco Bay.
BB-10901A substance that combines a monoclonal antibody (huN901) with an anticancer drug (DM1), and is being studied in the treatment of certain cancers…
BBBDThe use of drugs to create openings between cells in the blood-brain barrier. The blood-brain barrier is a protective network of blood vessels and tissue…
BBICA substance being studied in the prevention of cancer. BBIC is made from soybeans, and is a type of serine proteinase inhibitor.
BBR 2778A substance that is being studied in the treatment of cancer. It belongs to the family of drugs called antitumor antibiotics. Also called pixantrone.
BBR 3464A substance that is being studied in the treatment of cancer. It belongs to the family of platinum-based drugs.
BBS (Bulletin Board System)A computer system or service that users access to participate in electronic discussion groups, post messages and/or download files.
BCG solution(⦠suh-LOO-shun) A form of biological therapy for superficial (not invasive) bladder cancer.
BCH codeAbbreviation for Bose-Chaudhuri-Hochquenghem code. A multilevel, cyclic, error-correcting, variable-length digital code used to correct errors up to…
BCV (Business Continuity Volume)An EMC Symmetrix term that refers to a logical device on the EMC Symmetrix that may be merged into or split from a regular R1 or R2 logical device.
BCX-1777A substance being studied in the treatment of some types of leukemia and lymphoma. It is a type of purine nucleoside phosphorylase (PNP) inhibitor.
Beadwall&##8482;A form of movable insulation that uses tiny polystyrene beads blown into the space between two window panes.
beamThe main lobe of an antenna radiation pattern. 2. A column of light. Note: A beam may be parallel, divergent, or convergent. [After FAA]
Beam ControlTechnologies associated with controlling the physical properties of high-energy beams and steering the energy transmitted by those beams to the target…
beam diameterOf an electromagnetic beam, along any specified line that (a) intersects the beam axis and (b) lies in any specified plane normal to the beam axis, the…
beam divergenceOf an electromagnetic beam, in any plane that intersects the beam axis, the increase in beam diameter with distance from the aperture from which the beam…
BEAM FILLINGThe measure of variation of hydrometeor density throughout the radar sampling volume.
Beam RadiationSolar radiation that is not scattered by dust or water droplets.
beam steeringChanging the direction of the main lobe of a radiation pattern. Note: In radio systems, beam steering may be accomplished by switching antenna elements or…
BEAM WIDTHAngular width of antenna pattern. Usually that width where the power density is one-half that of the axis beam. (Half-Power or 3 dB point)
beamsplitterA device for dividing an optical beam into two or more separate beams. Note: An example of a beamsplitter is a partially reflecting mirror.
beamwidth1. In the radio regime, of an antenna pattern, the angle between the half-power (3-dB) points of the main lobe, when referenced to the peak effective…
beanA reusable software component that conforms to certain design and naming conventions.
bean-managed persistenceThe mechanism whereby data transfer between an entity bean's variables and a resource manager is managed by the entity bean.
Bear greaseSlang term used to describe any patching material used to fill cracks and holes or smooth bumps on a track's surface.
Bear marketA market in which prices are generally falling.
Bear spreadA bear spread is an options strategy that you use when you anticipate a decline in the price of the underlying instrument, such as a stock or an index.
Bear's Cage[Slang], a region of storm-scale rotation, in a thunderstorm, which is wrapped in heavy precipitation.
Bear-trap gateAny of a family of crest gates consisting of two leaves, an upstream leaf hinged and sealed at the upstream edge and a downstream leaf hinged and sealed…
Bearer bondA bearer bond is a certificate that states the security's par value, the rate at which interest will be paid, and the name of the bond's owner.
Bearer formWhen securities are issued as paper certificates and the issuing corporation has no record of the owner, the securities are in bearer form.
bearer serviceA telecommunications service that allows transmission of user-information signals between user-network interfaces. See B channel, service access.
Bearer SharesMany offshore financial secrecy jurisdictions permit the issuance of bearer shares by corporations chartered in their jurisdiction.
Bearing WallA wall that carries ceiling rafters or roof trusses.