Crossword clue: a solid bounded by twenty-four similar quadrilateral faces. it is a hemihedral form of the hexoctahedron.
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
(genetics) an organism or cell having the normal amount of DNA per cell; i.e., two sets of chromosomes or twice the hapl