Is it a generational thing that rectangles aren't called oblongs any more? I can't actually remember the last time I didn't say rectangle
I favour 'oblong' over 'rectangle' after all a square is only a special sort of rectangle
If I were writing, I might use oblong just because it is an adjective to describe a shape, but I wouldn't necessarily be referring to a rectangle
This is what makes most sense to me too
@brownmane ...
Now:
op cit
So Merriam-Webster is agreeing with both of us that an oblong (shape or object) actually connotes either a rectangl
oid shape /rectangular
oid object ie an imperfect/ inexact flat rectangle or a generally-rectangular 3-D object.
Therefore: one could agree that Poe's 'oblong box' (a coffin) is an excellent example of an irregular rectangular box (in fact, it's actually a stretched irregular hexagon when viewed from above, and almost the same from the sides....forming what might indeed be called.... a casket).
I find the sentence in the dictionary definition useful, but only when read twice: "any rectangle which isn't square is oblong"... note that this does NOT say "a square", it uses the word in the precise sense of meaning
none of the angles in the shape are exactly 90 degrees (ie "square").
Conversely, I really disagree with the comment that a rectangle or rectangular object on its side can be called an oblong, just because its on its side relative to the viewer. That's a crazy (and perhaps unique) proposition; what other Euclidian shape/Platonic solid can have a changed name just on the basis of its angular position? (nb this is
not the same as spheres becoming circles or cubes becoming squares when viewed from above).
Finally; oblongs can have curved/radiused corners or edges (cf leaves, pills, coffins): rectangles or rectangular objects cannot.
TLDR
rectangle= a flat right-angled shape with parallel sides but with one axis of symmetry different in length to the other
rectangular= an object with parallel faces and sides with two axes of symmetry different in length or depth to the other
oblong= a shape or object with edges, sides or faces that give the general impression of a rectangle shape or a rectangular object (in respect of one main axis of semi-symmetry being markedly-different from its others) and with irregular/non-parallel edges, sides or faces (all of which may not have either a planar surface or convergent angular transitions).
ps at no point in this post have the words 'trapezium' or 'trapezoid' been used, due to international regulations regarding them being spoken aloud on Fridays....
pps for similar reasons, the term 'irregular quadrilateral' is prohibited by statute other than on the first Wednesday of each month
ppps I cancelled my gym booking for this morning, since the above soft-core toponymy post has tired me too much already (well, to a degree)