Originally Posted by
cyccommute
Especially when the term they want to use doesn’t really describe what is going on. With a rim brake, the front wheel’s rim is “centered” on both the axle and the hub flanges. On a rear wheel (or front disc hub), the rim is centered on the axle but not on the hub flanges. Calling that offset “dish” is just an accepted way of describing it. Sometimes you just have to go with the flow. Something may be technically correct but not all that useful in real life. I really doubt that anyone at IUPAC ask for the (2R,3R,4S,5S,6R)-2-[(2S,3S,4S,5R)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol for their aqueous extraction of Coffea arabica heat treated embryonic material.
But there may be come folks at the ACS who ask for de-
(2R,3R,4S,5S,6R)-2-[(2S,3S,4S,5R)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-trio. (They're called organic chemists.)
Fun story: a couple of organic chemistry professors, co-authors of a standard graduate text, spent most of an afternoon sipping a bottle of wine while deciding what the proper systematic name of a couple couple natural products should be. The result was in the title of a refereed, published paper. 