This is the 2474th most frequent Arabic word.
مكثفة
Intensive.
Here, 'مكثفة' means 'intensive' and describes the type of training course.
لقد حضرت دورة تدريبية مكثفة الأسبوع الماضي.
I attended an intensive training course last week.
'مكثفة' is used to mean 'dense' and describes the details in the novel.
تحوي هذه الرواية تفاصيل مكثفة عن حياة الشخصية الرئيسية.
This novel contains dense details about the life of the main character.
In this context, 'مكثفة' means 'concentrated,' describing the technique employed by the laboratory.