The noun NINJA has 2 senses: 1. a member of the ninja who were trained in martial arts and hired for espionage or sabotage or assassinations; a person skilled in ninjutsu. 2. a class of 14th century Japanese who were trained in martial arts and were hired for espionage and assassinations.
zygoma (zÄ«gÅÂ´mÉ), n 1. a long, slender process of the temporal bone, arising from the lower part of the squamous portion of the temporal bone and passing forward horizontally to join with the malar or zygomatic bone. 2. the zygomatic or malar bone that forms the prominence of the cheek.
Zygotes are the original cell that is formed when the animal sperm and egg cells combine. Originally a zygote is only 1 cell, but it begins to divide through the process of mitosis until it becomes much larger, eventually developing into an embryo, then fetus, and eventually, a developing baby.ygotes are only formed through the process of [b]fertilization[/b], which is the actual combining of a male sperm cell and a female egg cell.