Meaning
A three-terminal electronic component that conducts current in either direction when triggered; a bidirectional triode thyristor.
Etymology
Origin: Unknown
Short for triode for alternating current.
NYT Puzzle Appearances
No published puzzle dates on file for this word yet. It is part of the official NYT Spelling Bee word list for 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026.