Definition of "iceman"

iceman

noun
plural icemen
1. A person who trades in ice; a person employed to deliver block ice.
2. A man who is skilled in travelling upon ice, as among glaciers.
  Quotations
  We were accompanied by our two guides, Jean Baptiste Croz and Michel Croz, of Chamounix, two capital icemen, and worthy fellows.
  1862, Edward Shirley Kennedy, Peaks, passes, and glaciers, volume 1, page 241
3. A human figure carved out of ice.
4. An ancient human male mummified in ice.
5. (slang) An assassin.
6. (slang) One who is cool under pressure.
  Quotations
  Baltiel had always been the iceman, harsh and distant and lacking in sentiment.
  2019, Adrian Tchaikovsky, Children of Ruin, Macmillan, pages 267–268
7. (dated) A man in attendance at a frozen pond where skating etc. is going on.