We don't have synonyms for technicolour yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are Technicolor, technicology and technicolors.
(n) :
(British spelling) Alternative form of technicolor. [(American spelling) A process of colour cinematography using synchronised monochrome films, each of a different colour, to produce a colour print.]
(adj) :
(British spelling) Alternative form of technicolor. [(American spelling) Extremely or excessively colourful.]
(n) :
(British spelling) Alternative form of technicolor. [(American spelling) A process of colour cinematography using synchronised monochrome films, each of a different colour, to produce a colour print.]
(adj) :
(British spelling) Alternative form of technicolor. [(American spelling) Extremely or excessively colourful.]