The best word that describes the type of English used in the given sentence above is a jargon. Jargons are special words or expressions that are used in a specific profession and are often difficult to understand by ordinary people. The words that are jargons in the sentence are "bilateral probital hematoma".
Jargon refers to a type of terminology that is used to define specific concepts within a particular profession, trade or specialized group. The defining characteristic of jargon is that it uses words that are not common or easily understood in other contexts. In this case, the phrase "bilateral probital hematoma" is unlikely to be heard in a context that is not related to healthcare, or understood by people who are not physicians.
In school it sometimes gets boring to listen to the teacher all the time, and work with the same person over an over againe. Group work is the best solution for this.
This happens quite a lot in verbs e.g run to running. It is because you double the last consonant in a one-syllable noun for it to become a verb. (Keep in mind there are exceptions to this rule.)