Figure of Speech
Hypocatastasis
From Greek: placing under. Distinguished from simile (explicit) and metaphor (equating); the most compressed form of comparison. Discussed by E.W. Bullinger.
Definition
An implied comparison in which only the image is named, leaving the subject of comparison unstated.
Example
'You wolf!' — the speaker does not say 'you are like a wolf' or 'you are a wolf' but names the image directly.