Printer Networking. Line printer daemon. Lpd is a background process, which normally runs on a UNIX machine. Lpd accepts new print jobs, queues them and then sends them to the printer when they reach the end of the queue.
Line Printer Daemon. A service on the print server that receives documents (print jobs) from Line Printer Remote (LPR) utilities running on client systems. See also: Line Printer Remote (LPR); print job; print server; service
Luteal Phase Defect - This exists when the second half of your cycle is too short for implantation to be successful (many doctors consider anything less then 10 days to be too short for implantation). This is usually caused by low progesterone and can be detected by doing a progesterone test or an endometrial biopsy. You can also detect it by continuing to take your temperature after ovulation. If you have fewer than 10 temperatures above the pre-ovulatory high temperatures, then you may have a LPD. Also, if your period arrives within 10 days of ovulation, you may have a LPD.
Luteal phase defect. low levels of progesterone in repeated menstrual cycles. Progesterone is a hormone that is essential for the survival of a fetus early in pregnancy. In the past, doctors thought LPD affected miscarriage in early pregnancy but recent studies have not shown this to be true.