| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| chemical equation | |
| —n | |
| a representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product | |
equation (ɪˈkweɪʒən, -ʃən) ![]() | |
| —n | |
| 1. | a mathematical statement that two expressions are equal: it is either an identity in which the variables can assume any value, or a conditional equation in which the variables have only certain values (roots) |
| 2. | the act of regarding as equal; equating |
| 3. | the act of making equal or balanced; equalization |
| 4. | a situation, esp one regarded as having a number of conflicting elements: what you want doesn't come into the equation |
| 5. | the state of being equal, equivalent, or equally balanced |
| 6. | a situation or problem in which a number of factors need to be considered |
| 7. | See chemical equation |
| 8. | astronomy See personal equation |
| e'quational | |
| —adj | |
| e'quationally | |
| —adv | |
| Main Entry: | chemical equation |
| Part of Speech: | n |
| Definition: | a symbolic representation of a chemical reaction, specif. the reactants on the left and the products on the right, separated by an equal sign or directional arrows |
equation e·qua·tion (ĭ-kwā'zhən, -shən)
n.
A statement asserting the equality of two mathematical expressions, usually written as a linear array of symbols that are separated into left and right sides and are joined by an equal sign.
A representation of a chemical reaction, usually written as a linear array in which the symbols and quantities of the reactants are separated from those of the products by an equal sign, an arrow, or a set of opposing arrows.
equation (ĭ-kwā'zhən) Pronunciation Key
|
An expression of equality between two formulas in mathematics. The two formulas are written with an equal sign between them: 2 + 2 = 4 is an equation, as is E = mc2.