Thrombold is a non-standard spelling of the word "thrombosed" which refers to the formation or presence of a blood clot in the body's circulation system. The phonetic transcription of the word "thrombold" is /ˈθrɒmboʊld/. This spelling includes the "b" sound which is not present in the correct phrasing of the word. It is important to use standard spelling when communicating to ensure clear understanding by the audience.
Resembling a clot or thrombus.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.