antenna

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antenna

 [an-ten´ah] (pl. anten´nae)
one of the appendages on the head of arthropods.

antenna

(ăn-tĕn′ə)
n. pl. an·tennae (-tĕn′ē)
1.
a. Zoology One of the paired, flexible, segmented sensory appendages on the head of an insect, myriapod, or crustacean functioning primarily as an organ of touch.
b. Something likened to this sensory appendage, as in function or form: sensitive public relations antennae.
2. A structure in a photosynthetic organism containing pigment molecules that absorb light energy and transfer it to a reaction center composted of proteins and pigments, where the light energy is converted into chemical energy.

an·ten′nal adj.

antenna

Imaging
An MRI term for the component of a scanner that sends and/or receives  electromagnetic waves.

Vox populi
A popular term for the instinct that some people have for detecting subtle clues in interpersonal relationships.

antenna

(pl. antennae) usually one of a pair of many-jointed, whip-like structures present on the head of many arthropods, particularly insects (first appendage on head) and crustaceans (second appendage). Antennae have a sensory function, though in some crustaceans they are used for attachment or swimming.
References in classic literature ?
He was tall and thin and very handsome, with a grizzled beard; his gray hair was very curly, and even rose in front in two rebellious ringlets that seemed to the fanciful to tremble like the antennae of some giant insect, or to stir sympathetically with the restless tufted eyebrows over his rather haggard eyes.
She watched him, her forehead drawn into perpendicular folds, the thin black eyebrows diverging upwards like tile antennae of an insect.
Numerous antenna types have been used to implement this technology amongst which the Microstrip patch antennae are of significant importance because of their several eye-catching characteristics as they are inexpensive, light weight, low profile and above all, quick and simple to manufacture [2].
A lot of research is being conducted to make compact antennae for the ease of use.