multiple sclerosis
Word Rarity
Rare
Frequency: Zipf frequency 3.29 in modern English
23
Scrabble Score
17
Letters
6
Syllables
11
Unique Chars
Meaning
noun
A chronic non-contagious disease of the brain and spinal cord characterized by changes in sensation, visual problems, weakness, depression, difficulties with coordination and speech, impaired mobility and disability.
Uncountable
Etymology
Ellipsis of multiple cerebral sclerosis, i.e. appearance of hardenings or nodules dispersed throughout parts of the central nervous system, in the brain or spinal cord. Confusingly, at some point during the 20th century most sources started dropping cerebral from the expression, even though sclerosis can occur in the other tissues of the body, in unrelated pathologies.