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polyhedron

noun
/ˌpɒlɪˈhiːdɹən/UK/ˌpɑliˈhidɹən/US

Etymology

From New Latin polyedron, from Ancient Greek πολύεδρος (polúedros, “having many seats”), from πολυ- (polu-, “many”) + ἕδρα (hédra, “seat”); compare French polyèdre. By surface analysis, poly- + -hedron.

  1. derived from πολύεδρος — “having many seats”
  2. borrowed from polyedron

Definitions

  1. A solid figure with many flat faces and straight edges.

    • Of the convex polyhedra with regular faces, the only ones that have tetrahedral, octahedral, or icosahedral symmetry are the Platonic and Archimedean solids.

  2. A polyscope, or multiplying glass.

  3. A stage in the growth of Hydrodictyon, when the resting spore breaks up into several…

    A stage in the growth of Hydrodictyon, when the resting spore breaks up into several megazoospores that put out horn-like appendages; these polyhedra break up into zoospores.

The neighborhood

Derived

Euler's polyhedron formula, ideal polyhedron, Johnson polyhedron, micropolyhedron, nanopolyhedron, polyhedrin, polyhedroid, Schönhardt polyhedron, spheropolyhedron

Vish — recursive loop

A definitional loop anchored at polyhedron. Each word in the ring is defined by the next; follow the chain far enough and it folds back on itself. Scroll to it and watch.

01polyhedron02appendages03appendage04prolongation05prolonged06extended07elongated

A definitional loop anchored at polyhedron. Each word in the ring appears in the definition of the next; follow the chain far enough and it folds back on itself.

7 hops · closes at polyhedron

curated · pre-corpus. live cycle detection across the full graph is the next major milestone.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA