need for particular purpose.

sentence worded or expressed so as to elicit information. ask someone questions.

consequence, effect, or outcome of something. Some things produced through tests or experiments. To be the outcome of other causes and effects.

device for recording visual images in form of photographs. Objects that take pictures digitally, or on film.

A thing or issue that people do not agree about. alter coat of arms.

occurring continuously. unchanging situation.

Of a light that cannot be seen, but can be felt. infrared region of spectrum.

set of things working together as parts of mechanism. Sets of organized planned ideas that work together.

To begin the use of a new thing or practice.

A showing of a movie, TV show. To watch or see something, e.g. show on television.

Electric motor for starting an engine.

Concerning a cell of a living thing.

as separate entity or entities.

having become or been made better. To make, or become, something better.

thing constituting piece of evidence about past. Round plastic discs on which music has been stored. To write down or say what happened.