Glossary index

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Life sciences

Aardvark

The aardvark, a nocturnal mammal native to Africa, is known for its distinctive long snout and ability to dig. This animal, whose name comes from Afrikaans meaning 'earth pig', is characterized by…

Life sciences

Abdomen

The abdomen is the part of the human body located between the thorax and the pelvis, containing a series of vital organs, primarily those involved in the digestive system. This region is bounded by…

Life sciences

Abies

The fir is a genus of coniferous trees belonging to the Pinaceae family, commonly known for its conical shape and evergreen foliage. These trees are native to temperate regions of the Northern…

Life sciences

Acanthaceae

Acanthaceae is a family of flowering plants that includes around 250 genera and over 2,500 species. These plants are predominantly tropical and are found in various regions of the world, although…

Life sciences

Acanthus Hybrid

An acanthus hybrid is a cross between different species of acanthus, known for its ornamental foliage and distinctive flowers.

Life sciences

Acerola Cherry Hybrid

Acerola cherry hybrid is a cross between different varieties of acerola cherries, known for its high vitamin C content. This fruit, native to Central and South America, has been cultivated for…

Physical and Earth sciences

Acetylene

Acetylene is a flammable gas that appears as a colorless substance with a slight garlic odor. Its chemical formula is C2H2, indicating that it is composed of two carbon atoms and two hydrogen atoms…

Life sciences

Achillea

Achillea, commonly known as yarrow, is a genus of perennial herbaceous plants belonging to the Asteraceae family. These plants are characterized by their finely divided leaves and small flowers…

Life sciences

Acidic

The term 'acid' refers to a class of chemical compounds characterized by having a pH less than 7 and the ability to donate protons (H+) in a solution. Acids are fundamental in chemistry and biology…

Life sciences

Acidosis

Acidosis is a medical condition characterized by an excess of acid in body fluids, resulting in a blood pH lower than 7.35. This imbalance can be caused by various reasons, including respiratory or…

Life sciences

Acne

Acne is a skin condition characterized by the presence of pimples, blackheads, and cysts due to blocked hair follicles. This skin condition is most common during adolescence, although it can affect…

Life sciences

Acorn

The acorn is the nut of the oak tree, a characteristic fruit of trees in the genus Quercus. This small fruit, oval in shape and partially covered by a cupule, is known for its brown color and hard…

Life sciences

Acute gastroenteritis

Acute gastroenteritis is a sudden inflammation of the stomach and intestines, often leading to severe diarrhea and vomiting. This condition can be caused by viral, bacterial, or parasitic infections…

Life sciences

Acute Kidney Injury

Acute Kidney Injury (AKI) is defined as a sudden episode of kidney failure or damage that occurs within a few hours or days. This disorder is characterized by an increase in blood creatinine levels…

Life sciences

Acute mastitis

Acute mastitis is an infection of the breast tissue that most commonly occurs in breastfeeding women, although it can also affect women who are not nursing and, in rare cases, men. This condition is…

Life sciences

Acute Myocardial Infarction

Acute Myocardial Infarction (AMI) is a medical emergency that occurs when blood flow to the heart is blocked, leading to damage or death of heart tissue. This blockage is typically caused by the…

Life sciences

Acute Respiratory Distress Syndrome

Acute Respiratory Distress Syndrome (ARDS) is a severe lung condition characterized by the accumulation of fluid in the air sacs of the lungs, making it difficult for oxygen to adequately enter the…

Life sciences

Acute Sinusitis

Acute sinusitis is an inflammation of the paranasal sinuses that occurs suddenly and typically lasts less than four weeks. This condition can be caused by viral, bacterial, or fungal infections, as…

Life sciences

Adenine

Adenine is one of the four nucleobases that make up the nucleic acid of DNA, along with thymine, cytosine, and guanine. It is an organic compound that belongs to the class of purines, characterized…

Life sciences

Adenocarcinoma

Adenocarcinoma is a type of cancer that originates in the glands that secrete mucus and other substances. These glands can be found in various organs of the body, such as the lungs, pancreas, colon…

Life sciences

Adenoma

An adenoma is a type of benign tumor that originates in the glandular tissue of the epithelium. These tumors can develop in various parts of the body, including the colon, thyroid, adrenal glands…

Life sciences

Adenosine Triphosphate

Adenosine triphosphate (ATP) is a fundamental molecule in cellular biochemistry, acting as the primary energy transporter in cells. Composed of a nitrogenous base (adenine), a sugar (ribose), and…

Life sciences

Adenovirus gastroenteritis

Adenovirus gastroenteritis is a viral infection that affects the gastrointestinal tract, caused by adenoviruses, a group of viruses that can cause various diseases in humans. This condition is…

Life sciences

Aedes

Aedes is a genus of mosquitoes that includes several species known for their ability to transmit diseases to humans and other animals. These mosquitoes are easily recognizable by their black and…

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