intra-

prefix

in·​tra-

ˈin-trə,

-(ˌ)trä

1

a

: within

intragalactic

b

: during

intraday

c

: between layers of

intradermal

2

: intro-

an intramuscular injection

Word History

Etymology

Late Latin, from Latin intra, from Old Latin *interus, adjective, inward — more at interior

Kids Definition

intra-

prefix

in·​tra-

ˌin-trə,

ˌin-(ˌ)trä

1

a

: within

intramural

b

: between layers of

intradermal

2

: intro- sense 1

intravenous

Etymology

derived from Latin intra "within, between"

Legal Definition

intra-

prefix

1

: within

intrastate

2

: during

intraday