A thin sheet of metal that is shaken or struck to produce sound effects in music or drama.

plural of thunder sheet

plural of e-thumb

A drinking game in which one player puts their thumb on the table, or other surface. The last of the other players to put their thumb on it has to drink

(mathematics) One of the earlier theorems leading to Roth's theorem (a Diophantine approximation to algebraic numbers), establishing an exponent d/2+1+ε.

The Thursday before the start of Lent.

Of a book, having a thumb index.

A series of alphabetically marked or otherwise labelled semicircular cut-outs in the fore edge of a large reference book, encyclopaedia, Bible, etc., that allows quick access to various parts of the text.

plural of thumb index

Third-person singular simple present indicative form of steal someone's thunder