Yes, "thrombi" is the plural form of "thrombus."
More than one thrombus (or the plural form) is "thrombi".
The plural form of thrombus is thrombi.The plural is "thrombi" (from Latin), meaning blood clots within a blood vessel, or in the heart. If a blood clot reaches the lungs, it can cause pulmonary thrombosis.
thrombus
Bridges is the plural form of bridge.
"Groceries" is the plural form of "grocery."
There is no plural form for the word, countries. This word itself is a plural.
"Beliefs" does not have a plural form, as it is already plural. Beliefs is the plural form of belief.
The plural form of "meter" is "meters."
It has no plural form.
The plural form for the noun sergeant is sergeants; the plural possessive form is sergeants'.
The plural form of rung is rungs.