antenna

(redirected from antennal)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to antennal: antennal gland

antenna

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

antenna

/an·ten·na/ (an-ten´ah) pl. anten´nae   either of the two lateral appendages on the anterior segment of 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.

antenna

one of the appendages on the head of arthropods.
References in periodicals archive ?
Three of these crabs had moderate to high severity mikrocytid infections characterized by variable necrosis of the antennal gland and the presence of plasmodia and uninucleate forms of these parasites in the gills (not shown).
Structure and distribution of antennal sensilla of the red imported fire ant, Micron.
Mature larvae of Hydroporus (4) and Hygrotus (5) have well-developed stemmata located in ocularia that are as large as or larger than the antennal basal segments (Fig.
6, C and D): Covering thoracic somites; one pair of supraorbital, antennal, pterygostomial, and hepatic spines, 10 anteroventral and three ventroposteror spines on each marginal side; rostrum long with one dorsal tooth.
18) Number of setae in the third antennal segment: (0) 0; (1) 2.
Body black clothed with very dense yellowish pubescence with the exception of 2 areas near antennal scapes, 2 triangular areas on vertex, beginning from apical half of the 3rd up to the end following antennal segments, 2 longitudinal bands on medio-lateral parts of pronotum and interspaces of elytral bands clothed with dark brown ground pubescence.
The most characteristic antennal seta is the plumose type, which is located on the margin of the exopodite.
Diagnosis: A small species with a strong, 3-segmented antennal clava in female, brightly coloured A1 and legs; notauli distinct in anterior half, absent in posterior half; female metasoma 1.
In other words, antennal sensilla were assumed that most olfaction-driven behaviours such as host-seeking, oviposition as well as nectar-feeding site location is performed by these types of sensilla.
13), and two sparse paramedial rows of graduated elongate setae that look like an antennal array on the dorsum of the body, especially on the carapace (Fig.
ferox colonies, the researchers caught 79 of what they delicately call "interactions" In some of these situations, majors engaged in antennal boxing, with one major hammering its antennae against another's body.
Contract award: maintenance of air systems and antennal structures.