Having or showing interest. / (now rare) Motivated by considerations of self-interest; self-serving. / Owning a share of a company.

simple past tense and past participle of interest

Within a living organism.

Within a living organism.

In an artificial environment outside the living organism.

In an artificial environment outside the living organism.

(astronomy) An icy planetoid: an astronomical object, such as Pluto, Sedna or (for some authors) Ceres that is large enough to be a world and contains more ice than a typical asteroid.

Transitional. / Temporary.

A transitional or temporary period between other events.

A distinct physical object. / (by extension, video games) An object that can be picked up for later use. / A line of text having a legal or other meaning; a separate particular in an account.