© 2026 Sloth Lingo. Learn easy. Lounge wisely.

thecodont

Upper-Intermediate (B2)

IPA: /θiːˈkoʊdɒnt/

KK: /ˈθiːkəˌdɒnt/

adjective
Definition

Referring to a type of animal whose teeth are set in sockets in the jaw, similar to how modern mammals have their teeth.


Example

The thecodont structure of the dinosaur's teeth allowed for better chewing and processing of food.


Conversation
Sloth A
Did you know that some ancient creatures had thecodont teeth?
Sloth B
Really? I didn't know that term before today.
Sloth A
Yeah, it's interesting how their teeth were structured.
Sloth B
For sure! I love learning about how different species evolved.

Synonyms & Antonyms
Synonyms
socketed
anchored
rooted
Antonyms
loose
detached
unanchored
noun
Definition

An extinct group of early reptiles that had teeth set in sockets and are believed to be ancestors of dinosaurs and birds.


Example

The thecodont was an important part of the evolutionary history leading to modern reptiles.


Conversation
Sloth A
Did you know that some of the earliest reptiles were called thecodonts?
Sloth B
Really? I haven't heard of them before. What made them special?
Sloth A
They had teeth that were rooted in sockets, like modern mammals.
Sloth B
Root Explanation

The word 'thecodont' is formed from 'theco-' (from Greek 'theke', meaning sheath or case) and '-dont' (from Greek 'odous', meaning tooth). It refers to a type of reptile that has teeth set in sockets, resembling a sheath for the teeth.

Memory Tip

Think of 'theke' as a 'sheath' for teeth ('odont'), which helps you remember that 'thecodont' refers to creatures with teeth set in sockets.

Visually Confused Words
therodont
theriodont
secodont
mecodont
trichechodont
theriodonta
Is this page helpful?
That's fascinating! It sounds like they were important in the evolution of dinosaurs.

Synonyms & Antonyms
Synonyms
archosaur
reptile
dinosaur
Antonyms
mammal
amphibian
fish