Definitions - f

Falsifiability Rule

Search the Web for Falsifiability Rule
Feed-in Tariff

A renewable energy support mechanism used in certain countries, where producers are rewarded at a nationally prescribed level for renewable electricity fed into the grid

Search the Web for Feed-in Tariff
Firm Power

Search the Web for Firm Power
First Order Consumers

Search the Web for First Order Consumers
Fixed Tilt Array

Search the Web for Fixed Tilt Array
Flashing

Search the Web for Flashing
Flexible Solar Panels

Flexible Solar Panels are solar panels which can be bent or curved without an adverse impact on their viability as a solar panel.


This makes them suitable for portable usage as they can be rolled up easily when not in use. 

Search the Web for Flexible Solar Panels
Flexible-fuel Vehicle

Search the Web for Flexible-fuel Vehicle
Float Service

Search the Web for Float Service
Flocculation

Search the Web for Flocculation
Flood Forecasting

Search the Web for Flood Forecasting
Flood Peak

Search the Web for Flood Peak
Floodplain

Search the Web for Floodplain
Floodway

Search the Web for Floodway
Floor Cladding

Search the Web for Floor Cladding
Flow Battery

A flow battery, or a redox flow battery (after reduction–oxidation), is a type of rechargeable battery where rechargeability is provided by two chemical components dissolved in liquids contained within the system and separated by a membrane.


One of the biggest advantages of flow batteries is that they can be almost instantly recharged by replacing the electrolyte liquid, while simultaneously recovering the spent material for re-energization.

Different classes of flow cells (batteries) have been developed, including redox, hybrid and membraneless. The fundamental difference between conventional batteries and flow cells is that energy is stored as the electrode material in conventional batteries but as the electrolyte in flow cells.

Search the Web for Flow Battery
Fluoridation

Search the Web for Fluoridation
Flurocarbon

Search the Web for Flurocarbon
Flush Out

Search the Web for Flush Out
Fly Ash

Search the Web for Fly Ash
Flytipping

Search the Web for Flytipping
Foil Insulation

Foil insulation is a thin metallic film stretched over a surface to reduce heat transmission through a space by primarily radiated means. Often found in roof spaces. Some foils can come with a foam backing to give it extra strength and provide additional insulation against direct heat transmission.

Search the Web for Foil Insulation
Food Allergy

A food allergy is an adverse immune response to a food protein. They are distinct from other adverse responses to food, such as food intolerance, pharmacological reactions, and toxin-mediated reactions.

A protein in the food is the most common allergic component. These kinds of allergies occur when the body's immune system mistakenly identifies a protein as harmful. Some proteins or fragments of proteins are resistant to digestion and those that are not broken down in the digestive process are tagged by the Immunoglobulin E (IgE). These tags fool the immune system into thinking that the protein is harmful. The immune system, thinking the organism (the individual) is under attack, triggers an allergic reaction. These reactions can range from mild to severe. Allergic responses include dermatitis, gastrointestinal and respiratory distress, including such life-threatening anaphylactic responses as biphasic anaphylaxis and vasodilation; these require immediate emergency intervention. Non-food protein allergies include latex sensitivity. Individuals with protein allergies commonly avoid contact with the problematic protein. Some medications may prevent, minimize or treat protein allergy reactions.

Original Wikipedia entry

Search the Web for Food Allergy
Food Chain

Search the Web for Food Chain
Food Intolerance

Search the Web for Food Intolerance
Food Miles

Search the Web for Food Miles
Food Web

The complex inter meshing of individual food chains in an ecosystem.

Search the Web for Food Web
Food Web

A food web is a system of interlocking and interdependent food chains.

Search the Web for Food Web
Forcing Mechanism

A process that alters the energy balance of the climate system, i.e. changes the relative balance between incoming solar radiation and outgoing infrared radiation from Earth. Such mechanisms include changes in solar irradiance, volcanic eruptions, and enhancement of the natural greenhouse effect by emission of carbon dioxide. See also Radiative Forcing.

Search the Web for Forcing Mechanism
Forest Dieback

Search the Web for Forest Dieback
Forest Residues

Search the Web for Forest Residues
Fossil Fuel

A hydrocarbon deposit, such as petroleum, coal, or natural gas, derived from living matter of a previous geologic time and used for fuel.

Search the Web for Fossil Fuel
Fracking

Hydraulic fracturing, often called fracking, fracing or hydrofracking, is the process of initiating and subsequently propagating a fracture in a rock layer, employing the pressure of a fluid as the source of energy. The fracturing, known as a frack job (or frac job), is done from a wellbore drilled into reservoir rock formations, in order to increase the extraction rates and ultimate recovery of oil and natural gas.

Original Wikipedia entry

Search the Web for Fracking
Free Convection

Convection triggered by intense solar heating of the earth's surface.

Search the Web for Free Convection
Freewheeling

Search the Web for Freewheeling
Fresnel Lens

Search the Web for Fresnel Lens
Friable Asbestos

Search the Web for Friable Asbestos
Fuel Cell

A cell producing an electric current direct from a chemical reaction.

Search the Web for Fuel Cell
Fuelwood

Search the Web for Fuelwood
Fugitive Emissions

Emissions from leaks in the mining, exploration or transport of fossil fuels, such as gas pipeline leaks.

Search the Web for Fugitive Emissions
Functional Diversity

The characteristic of a place where a variety of different activities (economic, political, social) occur; most often associated with urban places.

Search the Web for Functional Diversity
Fungistat

Search the Web for Fungistat
Furling

Search the Web for Furling
Furling Tail

Search the Web for Furling Tail

Click on a letter to see all the terms and definitions that begin with that letter.

A free Android app containing all these definitions is now available, called the Green Dictionary. Click here to see the entry on the Android market; or click here if on an Android phone.