n.
Pronunciation: ' th ā -t ə , chiefly Brit ' th ē -t ə
Function: noun
Etymology: Middle English, from Latin, from Greek th ē ta, of Semitic origin; akin to Hebrew ṭ ē th teth
Date: 15th century
1 : the 8th letter of the Greek alphabet ― see ALPHABET table
2 : THETA RHYTHM