Felgerjeszt

Felgerjeszt is a Hungarian verb meaning to stimulate, arouse, or provoke, and to excite in a general sense. In everyday language it is used when describing how interest, enthusiasm, or activity is provoked. In scientific and technical contexts the term denotes raising a system to a higher energy state, i.e., excitation.

Etymology and forms: The verb is formed from gerjeszt “to stir up” with the prefix fel-, indicating upward or forward action. Related forms include felgerjesztés (the excitation), felgerjesztő (an exciter, a stimulating device), and felgerjesztett (excited).

In physics and chemistry, felgerjesztés refers to promoting an atom, molecule, or other system from a lower to a higher energy level, typically through absorption of energy such as a photon or via a collision. The excited state is called felgerjesztett állapot. De-excitation occurs through spontaneous or stimulated emission, returning to a lower energy level and often emitting radiation.

Other uses include technology and communications, where a signal or stimulus is used to trigger activity, for example felgerjesztő jel or felgerjesztő áram. The term is neutral and widely used across scientific, technical, and everyday Hungarian.