A fact known from direct observation.
A premise from which conclusions are drawn.
A floating reference point, or SLDMB, used to evaluate surface currents in a body of water. Often employed by coastal search and rescue.
A fixed reference point or set of reference points which precisely define a system of measurement or a coordinate system.
To provide missing data points by using a mathematical model to extrapolate values that are outside the range of a measuring device.
The degree of importance given to something.
The relative darkness or lightness of a color in (a specific area of) a painting etc.
The valuable ingredients to be obtained by treating a mass or compound; specifically, the precious metals contained in rock, gravel, etc.
The relative duration of a musical note.
That which is valued or highly esteemed, such as one's morals, morality, or belief system.
The amount (of money or goods or services) that is considered to be a fair equivalent for something else.
The quality (positive or negative) that renders something desirable or valuable.
Any definite numerical quantity or other mathematical object, determined by being measured, computed, or otherwise defined.
Precise meaning; import.
To regard highly; think much of; place importance upon.
To fix or determine the value of; assign a value to, as of jewelry or art work.
To estimate the value of; judge the worth of something.
To hold dear.