it is claimed that this is the opposite of "oblate" but it is, in fact, a legitimate definition of oblate. Oblate is also an opposite (sort of ) of prolate

...precisely my reason for submitting it - intended to confuse/mislead (edit: attract) anyone who might know the shape of the word but not quite all the details. ("Corroborative detail indeed -- corroborative balderdash!") :-)