What does "intra-" mean?

Within a single entity indicated by the root word:; Within a group or concept.

Intra-

/ˌɪn.tɹə/ prefix

prefix ·Rare ·Advanced level

Prefix

1
Within a single entity indicated by the root word:; Within a group or concept. morpheme
"intraclade"
2
Within a single entity indicated by the root word:; Inside or with, in terms of location or position. morpheme
"intrabone"
3
Within a single entity indicated by the root word:; During, within a time period. morpheme
"intraoperational"
4
Within a single entity indicated by the root word:; Behaviour of a single individual. morpheme
"intrajudge"
5
A direction that is inward or into the location indicated by the root word. morpheme
"intracavitary"

Show 7 more definitions

6
Indicating that the root is internal in nature. morpheme
"intramarry"
7
In between two entities:; Between two or more similar entities that are within a larger entity. The root indicates the commonality between the entities. morpheme
"intrachiral"
8
In between two entities:; Spatially located in between two points within the region indicated by the root entity. morpheme
"intramedian"
9
In between two entities:; Spatially located in between the root entity and a reference point. morpheme
"intramercurial"
10
The interior of the region indicated by the root. morpheme
"intracalvarium"
11
A part of the root entity. morpheme
"intramountain"
12
In alignment or synchronous with the root entity. morpheme
"intrametric"

Borrowed from Latin intrā (“within”).