- Original: τετράδιον - Transliteration: Tetradion - Phonetic: tet-rad'-ee-on - Definition: 1. a quaternion - Origin: from a presumed derivative of tetras (a tetrad, from G5064 ) - TDNT entry: None - Part(s) of speech: Noun Neuter - Strong's: Neuter of a presumed derivative of τέτρας tetras (a tetrad; from G5064 ); a quaternion or squad (picket) of four Roman soldiers: - quaternion. Total KJV Occurrences: 1 • quaternions, 1 Act 12:4