(nuclear physics, military) Enriched uranium containing at least 20% uranium-235 (some applications, such as fission weapons and naval reactors, use uranium enriched to as high as 80-95% uranium-235), and therefore capable of sustaining a nuclear fission chain reaction without needing a moderator; used in nuclear weapons and in a few types of nuclear reactors requiring very high power density or high neutron flux.

(nuclear physics) Enriched uranium with at least 2% but less than 20% uranium-235, enough to sustain a nuclear fission chain reaction in a nuclear reactor moderated by light water but not enough to allow a self-sustaining fission chain reaction without a moderator; used as the main nuclear fuel in most commercial nuclear reactors used to generate electricity.

(archaic) Third-person singular simple present indicative form of enrich

(archaic) second-person singular simple present form of enrich

present participle of enrichen

Third-person singular simple present indicative form of enrichen

simple past tense and past participle of enrichen

(transitive) To enrich; to make richer.

(mechanics, nonstandard) The choke of a motor vehicle.

plural of enrichener