Definitions

1. noun

a rare or obsolete term referring to a heightened sensitivity to the presence of algae, or an abnormal sensitivity to the presence of or exposure to sunlight

“Her doctor explained that her condition of algaesthesia was causing her to experience extreme discomfort in sunny weather.”

2. noun

an outdated term for photophobia, an abnormal or irrational fear of light

“The patient’s algaesthesia was a symptom of her more severe condition: photophobia.”