an acute viral disease, usually affecting children and young adults, caused by any of three polioviruses, characterized by inflammation of the motor neurons of the brain stem and spinal cord, and resulting in a motor paralysis, followed by muscular atrophy and often permanent deformities.
Soon after this, Kling and Levaditi published their detailed studies on acute anterior poliomyelitis.
Handbook of Medical Entomology William Albert Riley
an acute infectious viral disease, esp affecting children. In its paralytic form (acute anterior poliomyelitis) the brain and spinal cord are involved, causing weakness, paralysis, and wasting of muscle Often shortened to polio Also called infantile paralysis
1874, also polio-myelitis, coined by German physician Adolph Kussmaul (1822-1902) from Greek polios “grey” (see fallow (adj.)) + myelos “marrow” + -itis “inflammation.” So called because the gray matter in the spinal cord is inflamed, which causes paralysis. The earlier name was infantile paralysis (1843).
In many respects, also, this affection resembles the acute spinal paralysis of infancy, which, from the researches of Charcot, Joffroy, and others, have been shown pathologically to be an acute myelitis of the anterior cornua. Hence, for these forms of paralysis, Professor Kussmaul suggests the name of ‘poliomyelitis anterior.’ [“London Medical Record,” Dec. 9, 1874]
acute anterior poliomyelitis n.
An acute infectious inflammation of the anterior cornua of the spinal cord caused by the poliomyelitis virus and marked by fever, pains, and gastroenteric disturbances, flaccid paralysis, and atrophy of muscular groups. Also called Heine-Medin disease.
poliomyelitis po·li·o·my·e·li·tis (pō’lē-ō-mī’ə-lī’tĭs)
A highly infectious viral disease that chiefly affects children and, in its acute forms, causes inflammation of motor neurons of the spinal cord and brainstem, leading to paralysis, muscular atrophy, and often deformity. Also called infantile paralysis.
A highly communicable infectious disease caused by the poliovirus of the genus Enterovirus that causes inflammation of motor neurons of the spinal cord and brainstem, leading to paralysis, muscular atrophy, and often disability and deformity. Childhood vaccinations are given to prevent infection. Also called polio.
poliomyelitis (polio) [(poh-lee-oh-meye-uh-leye-tis)]
An acute disease, and an infectious disease, caused by a virus, that brings about inflammation of certain nerve cells in the spinal cord. It can have a wide range of effects, from mild to severe, including paralysis, permanent disability, and death. In the United States, the disease has now largely vanished since the development of a vaccine against it. (See Sabin vaccine and Salk vaccine.)
Note: The history of polio, which went from a major public health problem to a minor one in a short time, is often used as an example of the benefits of medical research.
Note: President Franklin D. Roosevelt suffered from poliomyelitis. During his presidency, he could not walk unaided.
Insurance. a person who computes premium rates, dividends, risks, etc., according to probabilities based on statistical records. (formerly) a registrar or clerk. noun (pl) -aries a person qualified to calculate commercial risks and probabilities involving uncertain future events, esp in such contexts as life assurance n. 1550s, “registrar, clerk,” from Latin actuarius “copyist, account-keeper,” from […]
- Acute ascending paralysis
acute ascending paralysis acute ascending paralysis n. Paralysis having a rapid course, beginning in the legs and progressively involving the trunk, arms, and neck. Also called Landry’s paralysis.
- Acute arch
noun another name for lancet arch Historical Examples The latter has an acute arch, without moulding, constructed within it, apparently to strengthen the walls. Bell’s Cathedrals: Southwark Cathedral George Worley
- Acute bisectrix
See under (def 1). Crystallography. an imaginary line either the acute angle (acute bisectrix) or the obtuse angle (obtuse bisectrix) of the optic axes of a biaxial crystal. Geometry. a bisector. noun (pl) bisectrices (baɪˈsɛktrɪˌsiːz) another name for bisector the bisector of the angle between the optic axes of a crystal