The Academical Dictionary states this for vampires:
- A reanimated corpse that is believed to rise from the grave at night to suck the blood of sleeping people.
- A person, such as an extortionist, who preys upon others.
- A vampire bat.
In popular legend, a bloodsucking creature that rises from its burial place at night, sometimes in the form of a bat, to drink the blood of humans. By daybreak it must return to its grave or to a coffin filled with its native earth
Traditionally the revenant, or undead, is a mouldering corpse dragging itself out of graves to feed off the life-blood of the living. Premature burial arising from times of plague is one explanation for the prevalence of the vampire phenomenon at certain periods in history.
Vampires are supposedly dead humans (originally suicides, heretics, or criminals) who maintain a kind of life by biting the necks of living humans and sucking their blood; their victims also become vampires after death. These "undead" creatures cast no shadow and are not reflected in mirrors. They can be warded off by crucifixes or wreaths of garlic and can be killed by exposure to the sun or by an oak stake driven through the heart.
You see; There is only little that is actually a general idea of a vampire
A vampire is basically a creature that nurses on others like a leech, with a few set weaknesses and feats
Without the draining of life or blood the being would not be called a vampire, but if the being did drain blood and had other feats other than the draining it would still be considered a vampire