external

As a noun invitro

is (demoscene) an intro that provides details of a forthcoming demoparty to which viewers are invited.

As an adjective external is

outside of something; on the exterior.

As adjectives the difference between ambient and external

is that ambient is encompassing on all sides; surrounding; encircling; enveloping while external is outside of something; on the exterior.

As a noun ambient

is something that surrounds.

As an adjective external

is outside of something; on the exterior.

As an adverb abroad is

(dated) at large; widely; broadly; over a wide space .

As a noun abroad is

(rare) countries or lands abroad .

As a preposition abroad is

throughout, over.

As adjectives the difference between inner and external

is that inner is being or occurring (farther) inside, situated farther in, located (situated) or happening on the inside of something, situated within or farther within contained within something while external is outside of something; on the exterior.

As a noun inner

is an inner part.

As adjectives the difference between lateral and external

is that lateral is lateral while external is outside of something; on the exterior.

As adjectives the difference between combined and external

is that combined is resulting from the addition of several sources, parts, elements, aspects, etc able to be united together, to converge while external is outside of something; on the exterior.

As a verb combined

is (combine).

As adjectives the difference between external and everlasting

is that external is outside of something; on the exterior while everlasting is lasting or enduring forever; existing or continuing without end; immortal; eternal.

As a noun everlasting is

an everlasting flower.

As adjectives the difference between imminent and external

is that imminent is about to happen, occur, or take place very soon, especially of something which won't last long while external is outside of something; on the exterior.

As adjectives the difference between inherent and external

is that inherent is inherent while external is outside of something; on the exterior.

As adjectives the difference between derived and external

is that derived is (systematics) of, or pertaining to, conditions unique to the descendant species of a clade, and not found in earlier ancestral species while external is outside of something; on the exterior.

As a verb derived

is (derive).