The word "systremma" is a rare loanword from Greek, referring to a traditional martial arts form. Its spelling reflects its Greek origin, with a combination of the letters Y, S, and T indicating the Greek letter upsilon, pronounced like the English "oo". The word is pronounced /ˈsɪstrɛmə/ in English, with the first syllable stressed and the second containing a schwa vowel sound. The proper spelling of this word may be unfamiliar to many, but it is important to maintain accuracy and clarity in language usage.
A muscular cramp in the calf of the leg, the contracted muscles forming a hard ball.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.