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biconcavity

Upper-Intermediate (B2)

IPA: //ˌbaɪ.kɒnˈkæv.ɪ.ti//

KK: /baɪˈkɒnˌkævɪti/

noun
Definition

The state of having two curved surfaces that are both concave, resembling the shape of a biconcave lens or certain types of cells.


Example

The biconcavity of the lens allows it to focus light more effectively.


Conversation
Sloth A
Have you ever heard of the term biconcavity?
Sloth B
No, I haven't! What does it mean?
Sloth A
It's when something has two concave surfaces, like certain lenses or even red blood cells.
Sloth B
That’s interesting! I never knew there was a specific term for that.

Synonyms & Antonyms
Synonyms
concavity
hollow
depression
Antonyms
convexity
bulge
elevation
Root Explanation

Biconcavity → It is formed from "bi-" (meaning two) and "concavus" (from Latin, meaning hollow or curved inward) and "-ity" (meaning the state or condition of). The word describes the state of having two hollow or inward curves.

Memory Tip

Think of 'two' ('bi-') inward curves ('concavus') to remember that 'biconcavity' refers to a shape that has two concave surfaces.

Visually Confused Words
concavity
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