We don't have synonyms for leucaemia yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are leukemia, leukaemia and leucaena.
(n) :
Alternative spelling of leukemia. [(oncology, pathology) Any of a class of types of cancer affecting the blood cells, especially the white blood cells (usually with massive leukocytosis), and the blood cell–forming (hematopoietic) tissues.]
(n) :
Alternative spelling of leukemia. [(oncology, pathology) Any of a class of types of cancer affecting the blood cells, especially the white blood cells (usually with massive leukocytosis), and the blood cell–forming (hematopoietic) tissues.]