What is the correct term for hay fever?

The term "pollenosis" specifically refers to a type of allergic reaction caused by the inhalation of pollen, which is typically associated with hay fever. This condition is characterized by symptoms such as sneezing, runny or stuffy nose, itchy eyes, and other respiratory issues that occur when an individual is exposed to pollen from plants during certain seasons.

Hay fever, or allergic rhinitis, is closely tied to exposure to allergens, and pollen is one of the most common triggers for this condition. Therefore, "pollenosis" appropriately captures the essence of hay fever as it highlights the role of pollen in causing the allergic reaction.

In contrast, the other terms provided do not accurately represent hay fever. Asthma refers to a chronic condition affecting the airways in the lungs, often characterized by wheezing and difficulty breathing, but it is a separate entity from hay fever. Sinusitis involves the inflammation of the sinus cavities, which can occur as a secondary effect of allergies but is not the same as hay fever. The term "weedsidsis" is not a recognized medical term associated with hay fever or allergies. Thus, "pollenosis" is the correct choice as it directly relates to the allergic response linked specifically to pollen exposure.