Foveolet

Part of speech: noun

Definitions

1. A minute pit or shallow depression, especially the tiny central spot within the retina of the eye where vision is sharpest
2. A very small pit or hollow on a surface, particularly the minute depression at the centre of the retina that gives the sharpest vision
3. Any tiny pit-like depression, most notably the small central area of the retina where visual acuity is highest

Etymology: "Foveolet" is a variant of "foveole," a technical term for a tiny pit in the retina, the light-sensitive layer at the back of the eye. Its building blocks are the Latin "fovea," meaning a pit or small hollow, and the diminutive suffix "-ole," which marks something as small. Put together, the word means "little pit," a fitting name for the minute depression at the centre of the retina where vision is sharpest. The suffix "-ole" is borrowed from French, where it entered words such as "globule" and "vacuole," and it was taken into English largely through scientific and anatomical vocabulary. Anatomists building terms for very small structures reached for it again and again, which is why "foveole" reads like a miniature version of "fovea" itself.