nondisjunction - meiosis in which there is a failure of paired homologous chromosomes to separate; results in an abnormal number of chromosomes in the daughter cells.
What Date? is a simple, freeware date calculator for Windows. Enter a date and interval and press calculate to find any date in the future or past. What Date will recognize any date format which Windows can understand (date formats as set in Control Panel). I wrote this because many people emailed asking; Is there a simple way to find a date given a start date and interval?.
to date - prior to the present time; no suspect has been found to date. date1. 1. (a statement on a letter etc giving) the day of the month, the month and year. I can't read the date on this letter. 2. the day and month and/or the year in which something happened or is going to happen.