What type of hair is referred to as eyelash hair?

Eyelash hair is referred to as cilia. In the context of hair types, cilia specifically designates the fine, short hairs that compose the eyelashes. These hairs serve a protective function by preventing debris and particles from entering the eyes, in addition to contributing to the overall appearance of the eyes.

Supercilia, which sounds similar, refers to eyebrow hair and is distinct from eyelash hair. Barb is a term that generally refers to a projection or a small spike; it is not applicable in this context. Villus hair refers to short, fine, and soft hair that covers most of the body, which again does not apply to eyelash hair specifically. Thus, cilia is the accurate term for eyelash hair, encapsulating its unique characteristics and role.