# Browse Dictionary by Letter

Comprehensive
Dictionary Suite
 Beginner's Dictionary Intermediate Dictionary Advanced Dictionary
 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 decide to arrive at a conclusion about or a settlement of; determine. [7 definitions] decided unquestionable. [2 definitions] decidua a mucous membrane that lines the uterus and is cast off at childbirth or during menstruation. deciduous of trees and shrubs, having leaves that drop off seasonally each year. (Cf. evergreen.) [3 definitions] decigram a unit of weight equal to one tenth of a gram or 1.543 grains. decile in statistics, any of the values that divide a frequency distribution into ten groups of equal frequency, or any one of these groups. deciliter a unit of capacity equal to one tenth of a liter or 3.39 fluid ounces. decillion the number represented by the Arabic numeral 1033. [2 definitions] decimal pertaining to the number ten or to tenths. [5 definitions] decimal classification a system of organizing books in libraries using numbers with decimals. decimal fraction a fraction whose denominator is some power of ten, indicated by a decimal point before the numerator, such as .7, equaling seven tenths, or .015, equaling fifteen thousandths. (Cf. common fraction.) decimal point a period placed before the numerator in a decimal fraction. decimal system a numbering or measuring system based on the number ten. [2 definitions] decimate to destroy a large part or number of. [2 definitions] decimation the act of destroying a large part or number of something. decimeter a unit of length equal to one tenth of a meter or 3.937 inches. decipher to convert from a coded form to ordinary language; decode. [2 definitions] decipherable combined form of decipher. decision the act of deciding, or the judgement, choice, or resolution that one has come to after considering a matter. [2 definitions] decisive having the power or character to make decisions or end disputes. [2 definitions] decistere a unit of volume equal to one tenth of a stere or cubic meter or 3.532 cubic feet.