psi

Definition

The twenty-third letter of Classical and Modern Greek and the twenty-fifth letter of Old and Ancient Greek.

Etymology

From Middle English psi, from Latin psī, from Ancient Greek ψεῖ (pseî), the name for the twenty-third letter of the alphabet (Ψ, ψ).

Example Sentences

• "‘Come, lad,’ he said. ‘We will take tea together and speak of the noumenon, the psi and other more heterogenous phenomena.’"
• "When an event is classified as a psi phenomenon, it is claimed that all known channels for the apparent interaction have been eliminated."
• "It traces the growth of homo gestalt with the uniting of six lovely outcasts of society who have psi powers and come together as a hive mind, thus creating a gestalt super-being."