achondritic

9.9

A stony meteorite that does not have small round grains called chondrules

adjective
/ˌeɪkənˈdrɪtɪk/

Specialized

: acontrítico

Unlike chondritic meteorites, achondritic ones lack rounded chondrules in their structure.

Examples

Her thesis focused on the origin and classification of achondritic meteorites found in Antarctica.
The sample was confirmed to be achondritic.
The researchers analyzed the achondritic composition of the meteorite fragment.
Wow! This rock is achondritic!
Her thesis focused on the origin and classification of achondritic meteorites found in Antarctica.
The researchers analyzed the achondritic composition of the meteorite fragment.
Unlike chondritic meteorites, achondritic ones lack rounded chondrules in their structure.

Antonyms

chondritic

Specialized

1 9.9

Having small round grains like those in old rocks from space

Surface Forms

achondritic positive

Morphology

achondritic = achondrite (transparent) = achondrite + ic

Formed by the regular adjectival suffix '-ic' on 'achondrite', yielding 'relating to an achondrite', a directly derived meaning.

Etymology

The word achondritic comes from the Greek prefix a- meaning 'not' and chondros meaning 'grain' or 'cartilage', the same root you see in English cartilage. So an achondritic meteorite is 'without grains', meaning it does not have the small round grain structures that many other meteorites have.