Neutrinos were formerly considered to fall into this class as well.

For example, drug abuse - formerly considered to be a behavioral and social problem - has now been classified as a "disease."

They were formerly considered to breed in tree hollows but recent studies found no evidence.

As suggested by its common name, it was formerly considered a cotinga.

It was formerly considered a town, having been granted a charter some time before the year 1334.

These very similar species were formerly considered to be conspecific.

The genus was formerly considered to be a large one with well over 100 species.

They were considered formerly to be part of the protista family.

It was formerly considered a distinct letter, but is no longer.

The new houses have been built on land that was formerly considered the farmers outfield.