Is the use of the word 'Nutfah' allegedly an error in Quran?

The alleged error is that the quran refers to that semen creates the embryo but it is the sperm cells and not the semen itself, 1 sperm cell + ovum = embryo not semen+ovum sense semen is a lot of spermcells How can this be explained ? The author of the Qur'an describes the formation of a human embryo from fluids emanating from the man (and possibly also of the woman). This reflects the contemporary, but incorrect, view that the embryo is initially formed out of semen stored in the womb. In fact, semen is the vehicle for the sperm cells, one of which fuses with a woman's ovum in her fallopian tube, and the resulting cell divides and travels back into the womb for implantation. While English translations mention a "drop of seed", or "drop of sperm", the Arabic word in question literally means a small amount of liquid, a euphemism for semen.