Term: nuclear rocket: a rocket engine in which a nuclear reactor is used to heat a propellant
Candidate hypernym: engine: motor that converts thermal energy to mechanical work → 1
Candidate hypernym: preformation: a theory (popular in the 18th century and now discredited) that an individual develops by simple enlargement of a tiny fully formed organism (a homunculus) that exists in the germ cell → 0
Candidate hypernym: skimming: the act of removing floating material from the surface of a liquid → 0
Candidate hypernym: car battery: a lead-acid storage battery in a motor vehicle; usually a 12-volt battery of six cells; the heart of the car's electrical system → 0
Candidate hypernym: catching: becoming infected → 0
Candidate hypernym: geoglossum: type genus of the Geoglossaceae comprising the earthtongues → 0
Candidate hypernym: breakthrough: making an important discovery → 0
Candidate hypernym: sen: a fractional monetary unit of Japan and Indonesia and Cambodia; equal to one hundredth of a yen or rupiah or riel → 0
Candidate hypernym: pioneer: someone who helps to open up a new line of research or technology or art → 0
Candidate hypernym: mantispid: insect that resembles a mantis; larvae are parasites in the nests of spiders and wasps → 0
Candidate hypernym: methotrexate: toxic antimetabolite that limits cellular reproduction by acting as an antagonist to folic acid; used to treat certain cancers and psoriasis and rheumatoid arthritis → 0