field-effect
UK[ˈfiːld ɪˌfɛkt]US[ˈfild əˌfɛkt]
n
A phenomenon in which the electric current flowing through a semiconductor is controlled by the application of an external electric field.
n
(attributive) Denoting a type of transistor (field-effect transistor or FET) that operates on this principle.
Morpheme Breakdown
field
effect
field
area
effect
result
Etymology
The term "field-effect" is a modern technical compound, constructed from two common English words of distinct origins to describe a specific electronic phenomenon. "Field" originates from the Old English concept of open land, which in physics evolved to denote a region of space under the influence of some force, such as an electric or magnetic field. "Effect," with its Latin roots in accomplishment, denotes the observable result or outcome. Thus, the compound's literal logic is "the result produced by an (electric) field," precisely describing how an applied voltage creates a field that in turn controls conductivity in a semiconductor, leading to the operation of devices like the field-effect transistor.
Analysis
Structure: field (area) + effect (result)
- field: From Old English feld (open land, plain), of Proto-Germanic origin. In this compound, it functions as a noun denoting the spatial region or area of influence.
- effect: From Old French, from Latin effectus (accomplishment, performance), from efficere (to accomplish). In this compound, it functions as a noun denoting the result or phenomenon produced.
Examples
The invention of the field-effect transistor revolutionized modern electronics.
Researchers are studying the field-effect in novel two-dimensional materials.
A key parameter for the device is its field-effect mobility.