Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A solid figure with seven plane faces.
- ‘I'm trying to build a variety of knots and convex heptahedra with this set.’
- ‘Edges vanish, and it becomes a heptahedron, having three rhombic faces and four triangular faces.’
- ‘Around the circle - in which the heptahedron lies - another seven-fold star can be constructed.’
- ‘We are aware that the dodecahedron dissected into four congruent heptahedrons could be positioned onto the bottom of the cube.’
- ‘While all of the faces are regular and vertices equivalent, the heptahedron is self-intersecting and is therefore not considered an Archimedean solid.’
Late 17th century: from hepta- seven + -hedron, on the pattern of words such as polyhedron.
Are you looking for a word for a foolish person? We explore twelve interesting words to describe the dunderheads in your life.
Before you run for the hills, let’s run through a list of ‘run’ expressions that are running through our minds.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.