Because patients needing medically necessary lenses often have irregular corneas, the process involved with fitting these lenses can be a difficult, expensive, time-consuming experience, that requires patience from and perseverence from both the practitioner and the patient.
Best Answer: An animal. Noun - name for an animal, person, place or thing. It refers to an inanimate object or a non-human one. Person refers only to humans. dog is a noun. a noun is a person, place, thing, or idea.
A collective noun is a word that refers to a collection of things taken as a whole. Most collective nouns in everyday speech are mundane and do not identify just one specific kind, such as the word group, which may apply to people in the phrase a group of people but may also correctly refer to dogs, in the phrase a group of dogs.