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It is frequently stated that using the plural antennae for electrical aerials is incorrect. Those who say this believe that there is a grammatical rule that the plural in the context of radio is antennas and in the context of biology (insect feelers for example) the plural is antennae. This may have crystallised into a firm rule in the US, but ...
Antenna (radio), also known as an aerial, a transducer designed to transmit or receive electromagnetic (e.g., TV or radio) waves Antenna types, a list of the many different types of radio and microwave antennas
The antenna gain, or power gain of an antenna is defined as the ratio of the intensity (power per unit surface area) radiated by the antenna in the direction of its maximum output, at an arbitrary distance, divided by the intensity radiated at the same distance by a hypothetical isotropic antenna which radiates equal power in all directions.
Telecommunication is a compound noun of the Greek prefix tele-(τῆλε), meaning distant, far off, or afar, [7] and the Latin verb communicare, meaning to share. Its modern use is adapted from the French, [ 8 ] because its written use was recorded in 1904 by the French engineer and novelist Édouard Estaunié .
An antenna focuses the radio waves in a certain direction. Usually, this is called the main direction. Because of that, in other directions less energy will be emitted. The gain of an antenna, in a given direction, is usually referenced to an (hypothetical) isotropic antenna, which emits the radiation evenly strong in all directions.
An “aging population” and reduction in available beds could create a “hospital bed shortage,” researchers say
The plural may be used to emphasise the plurality of the attribute, especially in British English but very rarely in American English: a careers advisor, a languages expert. The plural is also more common with irregular plurals for various attributions: women killers are women who kill, whereas woman killers are those who kill women.
Clusivity is nonetheless a very common language feature overall. Some languages with more than one plural number make the clusivity distinction only in, for example, the dual but not in the greater plural, but other languages make it in all numbers. In the table below, the plural forms are the ones preferentially listed.