trisagion /tri-sagˈi-on/

1. An ancient hymn consisting of the words ‘O Holy God, holy and mighty, holy and immortal, have mercy on us’
2. Loosely, the Tersanctus

• signalises
• signalising
• signalize
• signalized
• signalizes
• signalizing
• signalled
• signaller
• signallers
• signal letters
• signalling
• signallings
• signally
• signalman
• signalmen
• signal peptide
• signals
• signal sequence
• signal-to-noise ratio
• signal-to-noise ratios
• signaries
• signary
• signatories
• signatory
• signature