Usually means the difference, called "Delta".
Using /\ for triangle:
/\ x means difference in x
or is sometimes used to mean a small amount, eg x + /\ means x plus a very small (infinitesimal) amount
It is the Greek letter 'Delta' which means change.
Plus twelve volts if you're in physics.
The answer depends on the context. Delta is a letter of the Greek alphabet and is shaped like a triangle. Mouths of rivers, which are often triangular in shape are, therefore, also called deltas. In mathematics, delta is often used to denote a change, particularly a small change. There is also the Dirac delta function which is an asymptotic spike function and is used in quantum physics.
Answer is Carbon
A black 'X' symbol on an orange backgound is the symbol meaning irritant or harmful
He is the symbol for Helium in a scientific setting.
Lambda is usually specified to mean wavelength in mathematics and physics.
Magnetic flux density, expressed in teslas in SI.
In physics, what is the symbol that looks like a horseshoe, and relation to voltage
Thwe symbol of deceleration is ' -a', and 'a' is the is the symbol of acceleration.
Generally referred to as velocity, the symbol is v.
The symbol for recycling is simply three arrows going in a triangular shape.
A triangular representation of the goddess Tanit.
λ can be used for the symbol for distance moved as well as the symbol for wavelength.
The Greek letter "theta" is generally used as a symbol of temperature in physics and chemistry.
As in science physics.
energy
if you are talking about physics, then it is wavelength of the light