© 2026 Sloth Lingo. Learn easy. Lounge wisely.

chelonian

Upper-Intermediate (B2)

IPA: /tʃəˈloʊniən/

KK: /ˈtʃɛloʊniən/

adjective
Definition

Relating to a group of reptiles that includes turtles and tortoises.


Example

The chelonian species are known for their hard shells and slow movement.


Conversation
Sloth A
Did you know that the chelonian species are among the oldest living creatures on Earth?
Sloth B
Really? I had no idea they were that ancient!
Sloth A
Yeah, it's fascinating how they have survived for so long with their unique adaptations.
Sloth B
Definitely! I think their chelonian traits help them thrive in various environments.

Synonyms & Antonyms
Synonyms
turtle
tortoise
reptilian
Antonyms
mammalian
avian
terrestrial
noun
Definition

A type of reptile that includes turtles and tortoises, belonging to the order Chelonia.


Example

The chelonian slowly made its way across the sandy beach.


Conversation
Sloth A
Did you know that a turtle is considered a type of chelonian?
Sloth B
Really? I had no idea it was part of that group.
Sloth A
Yeah, there are so many fascinating facts about chelonian creatures.
Sloth B
Root Explanation

Chelonian → It is derived from "chelonia" (from Greek "chelōnē", meaning tortoise or turtle). The term refers specifically to the group of reptiles that includes turtles and tortoises.

Memory Tip

Think of the Greek word for tortoise ('chelōnē') to remember that 'chelonian' refers to turtles and tortoises.

Visually Confused Words
helonin
heliconian
acheronian
helonias
cholonan
cetonian
Is this page helpful?
I should read more about them; they sound interesting!

Synonyms & Antonyms
Synonyms
tortoise
turtle
testudine
Antonyms