phantasia

Something imaginary; a fantasy.

But even here suppuration does not always stop, reaching often the fore-arm, and in such cases even life is endangered. Unhealthy granulations, thrombosis of veins, septicæmia and pyæmia cause death. This picture is not merely a phantasia, but exists in reality, and I myself had occasion to witness two cases of this kind in the surgical wards of Berlin; [...]

When one thing fits into another, when all the parts mutually support and are supported, when a theory is capable of accounting for all questions, and thus is, in a certain sense, self-balanced and self-sustained and entire, we have a phantasia of truth forced upon our minds, even against our will.

A phantasm (an impression received through the senses) or the faculty of receiving or representing these impressions.

Phantasia, then, is the animal's awareness of some object or state of affairs, which may well prove to be an object of desire. [...] I am thirsty; I have (in the absence of the object) a phantasia of drink. [...] Phantasia can also be used to account for delusion in practical cases: "Poor dog, he saw that as water (or as drink) when it was really ammonia solution."

[T]he possibility of eating a piece of pie might be presented to you by your seeing it on the kitchen table. This stage is called phantasia, presentation or impression. Corresponding to a phantasia is a lekton, a proposition or sayable, for example, it is fitting for me to eat that piece of pie, which the agent entertains but does not necessarily endorse when she has a phantasia.

Archaic spelling of fantasia.

The little Italian party, before alluded to, had collected around the piano. The white and plump fingers of the gay and black-eyed daughter of the Roman marchioness were tripping lightly up and down the octaves of the instrument, and her little tastefully arranged head was merrily dancing from side to side, keeping time to the half-improvised phantasia, which trickled like a wayward stream from her hands.

She [Josepha Barbara Auernhammer] published subsequently many works of her own, (in all 63,) which, as well as her play, especially the extempore phantasias, were distinguished by much delicate feeling and a vivid imagination.