© 2026 Sloth Lingo. Learn easy. Lounge wisely.

alveolus

Upper-Intermediate (B2)

IPA: //ælˈviːələs//

KK: /ælˈviələs/

noun
Definition

A small, hollow space in the body, such as in the lungs where air is exchanged, or in the jawbone where teeth are held.


Example

The alveolus is essential for gas exchange in the respiratory system.


Conversation
Sloth A
Did you know that the lungs have tiny structures called alveolus?
Sloth B
Yeah, I read about them! They help with breathing, right?
Sloth A
Exactly! They are crucial for the exchange of oxygen and carbon dioxide.
Sloth B
It's amazing how such small things can have such a big impact on our health.

Synonyms & Antonyms
Synonyms
cavity
sac
pit
Antonyms
solid
mass
block
Root Explanation

Alveolus → It is formed from "alveus" (meaning cavity or hollow) and the diminutive suffix "-olus" (meaning small). The word refers to a small cavity or hollow structure, particularly in the context of anatomy, such as the small air sacs in the lungs.

Memory Tip

Think of a small 'cavity' ('alveus') when you remember that 'alveolus' refers to a small hollow structure in the body.

Visually Confused Words
faveolus
malleolus
aculeolus
calvous
avenous
Is this page helpful?