Langimage
English

toric

|tor-ic|

C1

🇺🇸

/ˈtɔːrɪk/

🇬🇧

/ˈtɒrɪk/

relating to a torus; donut-shaped

Etymology
Etymology Information

'toric' originates from New Latin, specifically the word 'toricus', where 'torus' meant 'cushion' or 'bulge' (Latin).

Historical Evolution

'toric' developed via the scientific/adjectival formation from Latin 'torus' → New Latin 'toricus' and from the later formation 'toroid' (19th century), eventually entering modern English as 'toric' to describe torus-like shapes and specialized lens types.

Meaning Changes

Initially it meant 'of or relating to a torus (a cushion- or bulge-like form)'; over time it retained that geometric sense and acquired a specialized optical sense for lenses that correct astigmatism.

Meanings by Part of Speech

Adjective 1

relating to or shaped like a torus; doughnut-shaped or ring-shaped (toroidal).

The mathematician described the toric surface, which has the topology of a torus.

Synonyms

toroidaltorus-shapeddoughnut-shaped

Antonyms

Adjective 2

of or relating to a lens with different curvatures in different meridians, used to correct astigmatism (as in 'toric lens' or 'toric contact lens').

She was prescribed toric contact lenses to correct her astigmatism.

Synonyms

astigmatic (in context)toroidal (in shape/context)

Antonyms

spherical (lens)

Last updated: 2026/01/03 08:34