antenna(redirected from Antennae (astronomy))
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antenna[an-ten´ah] (pl. anten´nae)
one of the appendages on the head of arthropods.
n. pl. an·tennae (-tĕn′ē)
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 MRI term for the component of a scanner that sends and/or receives electromagnetic waves.
A popular term for the instinct that some people have for detecting subtle clues in interpersonal relationships.