The hypodermic needle theory was invented by Harold Lasswell in 1927. He states that Media can 'inject' ideas/behaviours directly into a passive audience or society.
needle, hypodermic needle, hypo
A hypodermic needle. a record player needle
A hypodermic needle is often simply referred to as a needle or syringe needle. It is a hollow needle commonly used in medical procedures to inject fluids or extract samples from the body.
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A syringe with a calibrated barrel, plunger, and tip, used with a hypodermic needle for hypodermic injections and for aspiration. (Medical Dictionary)
Hypodermic needle.
Alexander Wood invented the hypodermic needle in order to provide a more efficient and effective method for delivering medication subcutaneously, directly into the body's tissues. This invention revolutionized medical treatment by allowing for precise dosages to be administered in a less painful and more accurate manner.
A hypodermic needle.
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needle
hypo= under Dermis= skin something that is hypodermic can go under the skin (e.g. a needle).