Dictionary Terms that Begins with "A"

Absolute Value
Category: Mathematics
The the distance of a number from zero on the number line.

Algorithm
Category: Computer Science
a stepbystep procedure for calculations.

Arthritis
Category: Medicine
Pain in between any joints of the body. Arthritis is another way of saying swollen, aching pain between two bones. The stiffness in arthritis tends to get worse, the older the person gets.

Activation Energy (Ea)
Category: Chemistry
The energy needed to start a reaction. The higher the activation energy, the harder it is to start a chemical reaction.

Algebraic Expression
Category: Mathematics
A mathematical expression with at least one random letter that represents an unknown number (known as a variable).

Array
Category: Computer Science
A fixedsized, sequence collection of elements of the same data type.

Address space
Category: Computer Science
A range of addresses

Adjacent
Category: Mathematics
Numbers that are next to each other.

ATP (AdenosineTriphosphate)
Category: Biology
The basic source of energy for cells to work. This is the \"currency\" or the money of the human body, which cells use to get things done. There is no life without atp.

Adventitious
Category: Plant Biology
An adventitious plant is a plant that grows from top to bottom instead of bottom to top. Usually plants grow from its roots, and go upwards from the ground, to the surface.

Angle
Category: Mathematics
Two rays sharing a common endpoint.

Angle Bisector
Category: Mathematics
A line or ray that divides an angle in half.

Action Potential
Category: Cell Biology
A large change in the membrane potential of a neuron or muscle cell. This is caused by an increase or decrease of K+ (Potassium) or Na+ (Sodium) via gateway channels. Action potentials are commonly known as \"allornone events\" because it either works or doesn\'t work.

Activation Energy
Category: Chemistry
The difference in the amount of potential energy between the starting reactant state, and the active state. Reactants must have enough energy to start reaction. This amount of energy needed to start a reaction is known as activation energy.

Angle(°)
Category: Physics
An angle is where two lines meet. The further away the lines are when they meet, the more of an angle it is. The closer they are, the smaller the angle.

Acceleration/Deceleration
Category: Physics
Acceleration is how fast your velocity is increasing/decreasing every second. If velocity is constant, then acceleration is equal to zero! (Acceleration = Velocity/Time).

Ampere\'s Law
Category: Physics
A formula that can be used to find magnetic field and/or current. Ampere\'s Law : u*I = B ∫ dl. B = Magnetic Field u = permeability of material (usually given) I = Current dl = length (usually known or memorized) ∫ = integrate

∫ Integral (AntiDerivative)
Category: Calculus
To integrate is to apply something across the entire area. To integrate a function is like taking a birds eye view of an object. Like looking at an entire forest instead of just one tree. It\'s like taking a tree and multiplying it until you get a forest.