antenna

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Related to antennal: antennal gland

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 periodicals archive ?
We used the abbreviations F, S, T, OD, and PW for antennal flagellomere, metasomal sternum and tergum, ocellar diameter and puncture width, respectively.
The larva pupates in the gall, and adults emerged through an escape hole dug by the pupa with its antennal horns.
The elapsed time until first antennal contact was 119.86 s [+ or -] 164.31 (7-651 s, n = 15), and antennation between them lasted 17.46 s [+ or -] 19.37 (3-68 s, n = 15).
Antennal segments: I, 0.1; II, 0.13 [+ o -] 0.02; III, 0.1 [+ o -] 0.01; IV, 0.16 [+ o -] 0.02.
Antennae inserted laterally before middle of rostrum, quite long; scape large, elongate; antennal club compact.
In the antennal gland, the hemocytic congestion observed can be considered responses to intoxication.
Forty percent (eight out of 20) of the crabs examined using histology, regardless of their Hematodinium status, had a mikrocytid infection of the antennal gland, gills, and hemolymph, 15% had systemic bacterial infections and 15% had systemic fungal infections caused by Ophiocordyceps.
Following grooming events were counted and timed separately: cleaning of antennal flagellum by mouthparts; scraping of antennal base by foreleg; cleaning of forelegs and midlegs/hindlegs (pooled together) by mouthparts; scraping of cerci and genitalia by hindlegs.
Alloglossidium renale is a progenetic trematode that matures within the antennal glands of the grass shrimps Palaemonetes kadiakensis and P.
Antennal scape with two weak setulae, pedicel with one strong setula and one weak setula, and postpedicel not reaching past bottom third of eye; ca 2x length of pedicel.