Langimage
English

retrobulbar

|re-tro-bul-bar|

C2

🇺🇸

/ˌrɛtroʊˈbʌlbər/

🇬🇧

/ˌrɛtrəʊˈbʌlbə/

behind the eyeball

Etymology
Etymology Information

'retrobulbar' originates from New Latin (medical formation), specifically from the Latin prefix 'retro-' meaning 'backward' and 'bulbar' derived from Latin 'bulbus' meaning 'bulb' (used for the eyeball).

Historical Evolution

'retrobulbar' was formed in medical New Latin as 'retrobulbaris' (or similar Late Latin formation) combining 'retro-' + 'bulbar', and it entered English from medical Latin usage in the 19th–20th century as the adjective 'retrobulbar'.

Meaning Changes

Initially it literally meant 'behind a bulb' (from 'bulbus'), and over time it has come to be used specifically to mean 'behind the eyeball' in ophthalmic and medical contexts.

Meanings by Part of Speech

Adjective 1

located or occurring behind the eyeball (the globe of the eye). Often used in medical contexts (e.g., retrobulbar hemorrhage, retrobulbar injection).

A retrobulbar injection was administered before the operation to provide local anesthesia.

Synonyms

retro-ocularpostbulbarposterior to the globe

Antonyms

Last updated: 2026/01/07 05:16