HTML table td meaning
It stands for Table Data
table data cell
quickest answer: http://www.w3.org/TR/html401/struct/tables.html#edef-TD
(edit) here is the html5 edition: http://www.w3.org/TR/html5/tabular-data.html#the-td-element
It means table data which is basically a cell or column.
Note also that tr stands for table row.
TD stand for Table Data.