The form of an object as seen by an observer.
The state of being in shadow or shade; (countable) a shadow.
The outline of a charge (“image displayed on an escutcheon”), sometimes filled in with a darker shade than the field.
A rough or symbolic representation; a vague indication of what is to come, a foreshadowing.
A faint sketch; a brief representation, an outline.
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.