Correct spelling for the English word "TMSITC" is [tˌiːˈɛmsˈɪtk], [tˌiːˈɛmsˈɪtk], [t_ˌiː__ˈɛ_m_s_ˈɪ_t_k] (IPA phonetic alphabet).
"TMSITC" is not a recognized acronym or initialism widely used or found in dictionaries. Therefore, it does not have an official dictionary definition. The term "TMSITC" could potentially be an acronym specific to a particular context, organization, or industry. Without further information or context, it is difficult to provide an accurate and comprehensive definition. It is possible that "TMSITC" is an abbreviation for a longer phrase or is being used as a code or shorthand within a specific field or group.
It is worth noting that acronyms and initialisms can have varied meanings depending on the specific context in which they are used. In some cases, acronyms and initialisms may have different meanings in different industries or contexts. To provide an accurate definition, more information about the background, field of application, or context in which "TMSITC" is being used would be required.
In conclusion, since "TMSITC" is not a widely recognized acronym or initialism, a dictionary definition cannot be provided.