branch of physics and technology concerned with design of circuits using transistors and microchips. Science of electrons and their action.

Act of preventing the display of emotion, feeling.

device which detects or measures physical property and records. Device that detects movement or physical stimuli.

Fresh foods such as fruits and vegetables. To manufacture something using machines.

characterized by or involving emission of electrons from surface by action of light.

rebound of ball. (Of check) to be rejected due to inadequate funds.

Someone who relies on (financial) support. undefined.

piece of glass or metal for reflecting light in required direction.

An action or task, e.g. sports, washing clothes.

Used before you explain something simply, clearly.

To entertain an audience by dancing, singing etc..

continuing or valid to final destination. From the beginning of something until the end. By a particular way or process; by the use of.

arranged in categories. newspaper advertisements. To arrange things into groups of similar items.

arranged in constant pattern. Customers who frequently visit a place.

spread out over large area. To cause something to spread through a large area.