noun
definition
A fish of the order Abdominales.
definition
(usually plurale tantum) An abdominal muscle.
adjective
definition
Of or pertaining to the abdomen; ventral.
example
abdominal cavity
definition
Having the ventral fins under the abdomen and behind the pectoral fins.
definition
Ventral, in describing a fin.
definition
Belonging to the order Abdominales of fish.
Examples of abdominal in a Sentence
Difference of opinion as to the nature of the abdominal appendages pre vails.
The fourth abdominal segment is often very large, and forms the greater part of the hind-body; this segment is markedly constricted at its basal (forward) end, where it is embraced by the small third segment.
The larvae have the three pairs of legs well developed, and the hinder abdominal segments swollen.
In Hemiptera only eleven and in Collembola only yolk, and that the mesenteric epithelium becomes reinforced by six abdominal segments have been detected.
Deeper abdominal exercises - These exercises work on the deeper layers of muscles.
In addition, cefoxitin, a cephamycin, is highly active against anaerobic bacteria, which offers utility in treatment of abdominal infections.
Appendicitis is the most common abdominal emergency found in children and young adults.
When perforation occurs, abdominal pain becomes more intense and involves the whole abdominal area, and fever may be very high.
Although infants and children younger than two years may also have abdominal pain and other symptoms, they are too young to effectively communicate their symptoms to adults, who may then miss the symptoms of appendicitis.
Symptoms in combination that require a doctor's immediate attention include significant abdominal pain, fever, diarrhea, nausea and vomiting, swollen or bloated abdomen, and loss of appetite.
If abdominal pain begins before nausea and vomiting, rather than after, appendicitis rather than intestinal infection is more likely.
In a younger stage of their development, however, the young are carried in a temporary abdominal pouch, to which they are transferred after hatching, and into which open the mammary glands.
The onset of the flu was abrupt with fever followed by vomiting, abdominal pain and profuse diarrhea.
Reverse Abdominal Nose Panting expands the abdomen on the puff out.
There maybe a burning sensation in the stomach, the feeling of an 'empty stomach ' or even abdominal pain.
Typical symptoms include abdominal bloating and soreness, gas, and alternating diarrhea and constipation.
Preparation for the scan People having abdominal, pelvic, or brain scans may be given special instructions in advance about eating and drinking.
Recently, my menstrual flow has changed and I am experiencing abdominal bloating and occasional tenderness.
They also make an exceptional abdominal exercise tool to create powerful and rock hard abs.
Although everyone covets sleek, toned abs, most consider abdominal training to be a real chore.
The risk of death from a ruptured abdominal aortic aneurysm is about 50 per cent, even during operation.
The abdominal aorta is the commonest site for a true aneurysm.
Imaging tests can include abdominal x rays, ultrasound, and computed tomography (CT).
Abdominal pain is a common complaint in children, and making a timely diagnosis of appendicitis before perforation is often difficult.
In an open appendectomy, the appendix is removed through a standard abdominal incision.
The tenth abdominal segment carries strong, unjointed cerci, while the presence of reproductive armature on the second abdominal segment of the male is a character found in no other order of the Hexapoda.
Structurally the Neuroptera are distinguished by elongate feelers, a large, free prothorax, a labium with the inner lobes of the second maxillae fused together to form a median ligula, membranous, net-veined wings without hairy covering, those of the two pairs being usually alike, the absence of abdominal cerci, and the presence of six or eight Malpighian tubes.
They may be distinguished from the Neuroptera by the elongation of the head into a beak, the small prothorax, the narrow, elongate wings with predominantly longitudinal neuration, the presence of abdominal cerci and the cruciform larva.
The round ligament is a cord of unstriped muscle which runs from the lateral angle of its own side of the uterus forward to the internal abdominal ring, and so through the inguinal canal to the upper part of the labium majus.
There are usually three small ganglia on the course of this visceral commissure, namely, the right and left visceral ganglia and the abdominal.
The testes are inguinal or abdominal.
The teats vary in number from a single abdominal pair in the guinea-pig to six thoracico-abdominal pairs in the rats; while in the Octodontidae and Capromyidae they are placed high up on the sides of the body.
The testes are permanently abdominal.
The Acridiidae have the feelers and the ovipositor relatively short, and possess only three tarsal segments; their ears are situated on the first abdominal segment and the males stridulate by scraping rows of pegs on the inner aspect of the hind thigh, over the sharp edges of the forewing nervures.
The upper plumage generally is dark green, but the mantle and rump are crimson, as are a broad abdominal belt, the flanks and many crescentic markings on the otherwise yellow lower parts.
There is a compound abdominal sternum.
The larvae are aquatic, active, armed with strong sharp mandibles, and breathe by means of seven pairs of abdominal branchial filaments.
Both in this species and the slow loris there is a pair of rudimentary abdominal teats in addition to the normal pectoral pair.
Paired abdominal ribs are doubtful.
Even in external view, careful inspection will show that the body is divisible into four regions, namely, cephalic, atrial, abdominal and caudal.
The developing eggs are not carried about by the mother, but deposited in her subaqueous burrow, "where they are aerated by the currents of water produced by the abdominal feet of the parent."
Willem it appears that the viscid fluid which causes the adherence of the ventral tube is secreted by a pair of glands in the head whose ducts open into a superficial groove leading from the second maxillae backward to the tube on the first abdominal segment.
In most Collembola the spring appears to belong to the fifth abdominal somite, but Willem, by study of the muscles, has shown that it really belongs to the fourth.
The eversible sacs on the abdominal segments are shown, some protruded and some retracted.
These form a more powerful wave-bath, and in combination with intestinal irrigation, are used very successfully for the treatment of abdominal disorders.
In some abdominal conditions, for instance, opium is still preferred by the majority of practitioners, though certainly not in gastric cases, where morphine gives the relief for which opium often increases the need, owing to the irritant action of some of its constituents.
Taken in large doses nitrate of silver is a powerful poison, causing violent abdominal pain, vomiting and diarrhoea with the development of gastro-enteritis.
T, telson, having the uropods or appendages of the last abdominal somite spread out on either side of it, forming the " tail-fan."
It is highly characteristic of the Malacostraca, however, that the trunk-limbs are divided into two sharply defined tagmata corresponding to the thoracic and abdominal regions respectively, the limit between the two being marked by the position of the male genital openings.
The thoracic limbs have the endopodites converted, as a rule, into more or less efficient walking-legs, and the exopodites are often lost, while the abdominal limbs more generally preserve the biramous form and are, in the more primitive types, natatory.