How Do You Spell RETAINAL?
Pronunciation: [ɹɪtˈe͡ɪnə͡l] (IPA) 
Retainal is a term often used in the world of ophthalmology. It refers to the ability of the retina to store an image in the brain, even after the image has ceased to be present in the environment. The correct spelling of the word is /rɪˈteɪnəl/, with the stress on the second syllable. The "ai" in the first syllable represents the "ey" sound, while the final "al" represents the "əl" sound. Retainal plays an important role in our ability to remember what we have seen.
