© 2026 Sloth Lingo. Learn easy. Lounge wisely.

ultrastructure

Upper-Intermediate (B2)

IPA: //ˌʌl.trəˈstrʌk.tʃər//

KK: /ˈʌltrəˌstrʌkʧər/

noun
Definition

The very small and detailed structure of a biological specimen, like a cell or tissue, that can only be seen with special tools like electron microscopes.


Example

Scientists studied the ultrastructure of the cell to understand its functions better.


Conversation
Sloth A
Did you know that the ultrastructure of a cell is really complicated?
Sloth B
I heard that! It’s amazing what we can only see with special microscopes.
Sloth A
Yeah, I read that electron microscopy is needed to observe its details.
Sloth B
Exactly! It's fascinating how much we miss with just our eyes.

Synonyms & Antonyms
Synonyms
structure
composition
framework
Antonyms
disorganization
chaos
dismantling
Root Explanation

Ultrastructure is formed from "ultra-" (meaning beyond) and "structure" (from Latin "structura", meaning arrangement or building). The term refers to the detailed structure of a biological specimen at a scale beyond what can be seen with a light microscope, emphasizing the complexity of its arrangement.

Memory Tip

Think of 'beyond' ('ultra-') the usual 'arrangement' ('structura') to remember that 'ultrastructure' refers to the intricate details of a structure.

Visually Confused Words

No commonly confused words.

Is this page helpful?