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

/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 ?
The collected adults, before maceration, did not have a hypodermal crimson spot between the antennal bases as observed in the paratype of L theobromae.
Whole 4th antennal segment ochraceous brown; apical margin of male paramere not straight with or without very thin spine; spermathecal bulb with usually three sub equal and finger like processes .
In the antennal gland, the hemocytic congestion observed can be considered responses to intoxication.
Proprioceptors and fast antennal reflexes in the ant Odontomachus (Formicidae, Ponerinae).
The cases of infection caused by a mikrocytid parasite seen in both Hematodinium-infected and noninfected crabs were characterized by the presence of free plasmodia in the lumen of the antennal gland and large numbers of uninucleate forms within the antennal gland cells (Fig.
Antennal scape with one weakly developed setula, pedicel with one robust setula, one weak setula, and two even weaker lateral setulae.
These groups can be distinguished by characteristics including: song type (chirping vs trilling and continuous vs interrupted); tegminal morphology; coloration of the head, pronotum, and abdomen; antennae color; and antennal markings on the pedicel and scape.
The major antennal of chemosensory protein (CSP) is the only carrier estimated of recognition signals to the olfactory receptor neurons [3].
Body blackish brown; the living adults have red hypodermal pigment which combined with the blackish cuticle results in dark abdominal segments with a red band in the posterior edge; the same red bands are observed at the end of the head, the prothorax and the metathorax; in addition, in weakly sclerotized individuals the tube is reddish; brown yellowish setae; middle part of the fore tibiae and tarsi brown yellowish; lateral margin of fore tibia dark brown; antennal segments dark brown except segment III brownish yellow and pale brown distally; fore wings slightly shaded around margins and in a medial longitudinal line (Fig.
Head wider than long (17:24); anterior process conical, reaching basal one-fifth of first antennal segment; gena not exceeding apex of clypeus; clypeus strongly raised anteriorly.
For each individual soldier, the following ten parameters were measured: i) length of head to side base of mandibles ii) width of head to side base of mandibles iii) width of head at the posterolateral ends of antennal carinae iv) maximum width of head v) length of left mandible vi) tooth of left mandible from tip vii) length of Pronotum viii) width of Pronotum ix) length of Postmentum x) width of Postmentum.
in preparation) and further suggest a tendency towards parallel evolution in some traits in these ants, including clypeal reduction between antenal lobes, reduction of the eyes to entirely absent or with few ommatidia, reduction in the number of antennal and palpal segments, and perhaps, simplification in sculpture.