one of the top chess players of a particular country
b.
(capital as part of title)
Grandmaster of Russia
2. Also called: International Grandmaster chess
a player who has been awarded the highest title by the Fédération Internationale des Échecs
3.
a leading exponent of any of various arts
IgM in American English
abbreviation
Immunology
immunoglobulin M: a class of short-term circulating and secretory antibodies existing as an aggregate of five antibody molecules, having a high affinity for viruses
Word origin
[1960–65]This word is first recorded in the period 1960–65. Other words that entered Englishat around the same time include: Pap test, bicycle kick, buyback, pop art, proxemics