Glossary
Terms starting with E
323 definitions · page 3 of 6.
- END USER
- The occupant of the premises who uses and pays for the telephone service received and does not resale it to others.
- endogenote
- Bacterial host chromosome. See merozygote.
- endomitosis
- Chromosomal replication without nuclear or cellular division that results in cells with many copies of the same chromosome.
- endonuclease
- An enzyme that cleaves or hydrolyzes phosphodiester bonds within a polynucleotide chain.
- endopolyploidy
- An increase in the number of chromosome sets caused by replication without cell division.
- ENDORSEMENT
- A written form attached to an insurance policy that alters the policy’s coverage, terms, or conditions. Sometimes called a rider.
- endosperm
- Triploid tissue in a seed, formed from fusion of two haploid female and one haploid male nucleus.
- ENERGY
- The capacity for doing work. Forms of energy include: thermal, mechanical, electrical and chemical. Energy may be transformed from one form into another.
- ENERGY BUDGET
- A requirement in the Building Energy Efficiency Standards that a proposed building be designed to consume no more than a specified number of British thermal units (Btus) per year per square foot of conditioned floor area.
- ENERGY CHARGE
- The amount of money owed by an electric customer for kilowatt-hours consumed.
- ENERGY CONSUMPTION
- The amount of energy consumed in the form in which it is acquired by the user. The term excludes electrical generation and distribution losses.
- ENERGY EFFICIENCY
- Using less energy/electricity to perform the same function. Programs designed to use electricity more efficiently - doing the same with less. For the purpose of this paper, energy efficiency is distinguished from DSM programs in that the latter are…
- ENERGY FUEL DIVERSITY
- policy that encourages the development of energy technologies to diversify energy supply sources, thus reducing reliance on conventional (petroleum) fuels; applies to all energy sectors.
- ENERGY MANAGEMENT SYSTEM
- A control system (often computerized) designed to regulate the energy consumption of a building by controlling the operation of energy consuming systems, such as the heating, ventilation and air conditioning (HVAC), lighting and water heating systems.
- ENERGY RESERVES
- The portion of total energy resources that is known and can be recovered with presently available technology at an affordable cost.
- ENERGY RESOURCES
- Everything that could be used by society as a source of energy.
- ENERGY RESOURCES PROGRAM ACCOUNT (ERPA)
- The state law that directs California electric utility companies to gather a state energy surcharge per kilowatt hour of electricity consumed by a customer. These funds are used for operation of the California Energy Commission. As of January 1, 2004, the…
- ENERGY SECURITY FUEL SECURITY
- policy that considers the risk of dependence on fuel sources located in remote and unstable regions of the world and the benefits of domestic and diverse fuel sources.
- ENERGY SECURITY/FUEL SECURITY
- policy that considers the risk of dependence on fuel sources located in remote and unstable regions of the world and the benefits of domestic and diverse fuel sources.
- Energy Star® Compliance
- The Energy Star label is a simple way to identify energy efficient products. These products generate fewer greenhouse gas emissions - which are contributing to the global problem of climate change - because they use less energy. That makes Energy Star…
- ENERGY/FUEL DIVERSITY
- policy that encourages the development of energy technologies to diversify energy supply sources, thus reducing reliance on conventional (petroleum) fuels; applies to all energy sectors.
- enforced outbreeding
- Deliberate avoidance of mating between relatives.
- enhancer
- A cis-regulatory sequence that can elevate levels of transcription from an adjacent promoter. Many tissue specific enhancers can determine spatial patterns of gene expression in higher eukaryotes. Enhancers can act on promoters over many tens of kilobases of…
- enhancer trap
- A transgenic construction inserted in a chromosome which is used to identify tissue-specific enhancers in the genome. In such a construct, a promoter sensitive to enhancer regulation is fused to a reporter gene, such that expression patterns of the reporter…
- ensemble
- (1) A group of performers; (2) a musical number in an opera, oratorio, or cantata sung by two or more performers; (3) the extent to which a group of performers coordinate their performance.
- ENTHALPY
- The quantity of heat necessary to raise the temperature of a substance from one point to a higher temperature. The quantity of heat includes both latent and sensible.
- ENTITLEMENT
- Electric energy or generating capacity that a utility has a right to access under power exchange or sales agreements.
- Entrecôte
- A boneless steak of beef cut from the sirloin, more commonly known as a sirloin steak. It’s a prime cut of beef so is best cooked quickly - either grilled or fried.
- Entry
- Two or more horses who have the same owner or trainer and are coupled in the wagering.
- entry
- In an imitative texture, the beginning of each statement of the theme.
- Entry in the U.S.
- See Admission glossary definition.
- Entry Level Skills
- The minimum required skills necessary for a job seeker (often a college leaver) to enter into employment with an organization.
- enucleate cell
- A cell having no nucleus.
- envelope
- The graphic representation of a sound's attack, duration, and pattern of decay.
- environment
- The combination of all the conditions external to the genome that potentially affect its expression and its structure.
- ENVIRONMENTAL IMPAIRMENT LIABILITY COVERAGE
- A form of insurance designed to cover losses and liabilities arising from damage to property caused by pollution.
- ENVIRONMENTAL PROTECTION AGENCY (EPA)
- A federal agency created in 1970 to permit coordinated governmental action for protection of the environment by systematic abatement and control of pollution through integration or research, monitoring, standards setting and enforcement activities.
- environmental variance
- The variance due to environmental variation.
- enzyme
- A protein that functions as a catalyst. Protein catalyst.
- EPA
- The Environmental Protection Agency. A federal agency charged with protecting the environment.
- EPAct
- The Energy Policy Act of 1992 addresses a wide variety of energy issues. The legislation creates a new class of power generators, exempt wholesale generators (EWGs), that are exempt from the provisions of the Public Utilities Holding Company Act of 1935 and…
- ephemeris
- a table that gives the positions of astronomical objects at certain intervals of time
- Epidermabrasion
- Skin peel in which the outermost layers of the skin are sloughed off
- Epidermis
- The outer layers of the skin.
- Epilate
- Remove hair from below the skin's surface
- episode
- (1) In a fugue, a freer passage between full statements of the subject; (2) in ritornello form, a freer concertina passage between ripieno statements of the ritornello.
- episome
- A genetic element in bacteria that can replicate free in the cytoplasm or can be inserted into the main bacterial chromosome and replicate with the chromosome. Term used by Jacob and Wollman for genetic elements that can either exist independently in a cell…
- epistasis
- The masking of the phenotypic effect of alleles at one gene by alleles of another gene. A situation in which the phenotypic expression of a genotype at one locus depends upon the genotype at another locus.
- EQUAL CREDIT OPPORTUNITY ACT (ECOA)
- The federal law that prohibits discrimination in the extension of credit because of race, color, religion, national origin, sex, age or marital status.
- Equal Protection
- The constitutional guarantee that persons will be treated equally.
- EQUALIZATION
- The raising or lowering of assessed values for tax purposes in a particular county or taxing district to make them equal to assessments in other counties or districts.
- EQUALIZATION FACTOR
- A factor (number) by which the assessed value of a property is multiplied to arrive at a value for the property that is in line with statewide tax assessments. The ad valorem tax would be based on this adjusted value.
- Equalizer
- A component or circuitry within a component that divides audio frequencies into separate bands, allowing the user to change the volume of each band and adjust for differences in listening space acoustics, personal taste or the characteristics of a specific…
- equational division
- The second meiotic division is an equational division because it does not reduce chromosome numbers. A nuclear division that maintains the same ploidy level of the cell.
- equatorial mount
- a telescope mount in which one axis lies parallel to Earth’s rotational axis; the motion of the telescope about this axis can compensate for Earth’s rotation
- equinox
- the two times of year when the sun crosses the celestial equator, giving day and night an equal 12-hour length everywhere on Earth
- Equitable Distribution
- A fair division of marital property in a divorce or dissolution of marriage case.
- Equitable Estoppel
- This is a bar precluding a person from taking advantage of, for example, not speaking when he should have because it was his duty to speak.
- EQUITABLE RIGHT OF REDEMPTION
- The right of a defaulted property owner to recover the property prior to its sale by paying the appropriate fees and charges.
- EQUITABLE TITLE
- The interest held by a vendee under a contract for deed or an installment contract; the equitable right to obtain absolute ownership to property when legal title is held in another's name.