â diminutiveness. â Diminutives can be a shortened form of a name (such as âJenâ for âJenniferâ and âDickâ for âRichardâ) or a name with a diminutive suffix added to it (such as âBobbyâ for âBobâ).
In trigonometry, theta is a symbol commonly used to represent an unknown angle in the same way you might use x to label an unknown side or an unknown number in general. Theta â¦ looks like this: Î¸. 2 people found this useful.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  theta(Noun) the name for the eighth letter u03BFf the Modern Greek alphabet, ninth in Old Greek. 2  theta(Noun) The measure of an angle.