Citation:
In Latin, the word 'virus' translates to 'poison' or 'slime,' but it is also commonly understood as a small infectious agent that can only replicate inside the living cells of an organism. This term connects to the second declension due to its grammatical structure and form. Understanding how 'virus' fits into the second declension allows for a deeper grasp of Latin noun endings and their usage in various cases, which is essential for proper sentence construction and comprehension.