Oocyte. Definition. noun, plural: oocytes. (1) A female gametocyte. (2) A developing female germ cell. Supplement. The oocyte is an immature female sex cell. It starts off as an oogonium by the process of oocytogenesis, and matures to give rise to a fully mature ovum or egg cell and ootid (by ootidogenesis).In humans, the oocytes are of two types: 1  primary oocytes.2  secondary oocytes.2) A developing female germ cell. Supplement. The oocyte is an immature female sex cell. It starts off as an oogonium by the process of oocytogenesis, and matures to give rise to a fully mature ovum or egg cell and ootid (by ootidogenesis).
The first predominantly copper small cent was isâ¦sued in 1864, after the 1856-1863 cents were a 88-12 copper-nickel alloy that gave them a nickel-like appearance. In 1982, the US mint began using a copper coated zinc alloy for pennies, ending the run of the solid copper penny. 18 people found this useful.
  The first true copper penny issued by the US mint was minted in 1793, commonly called a large cent due to it's size.The first predominantly copper small cent was is â¦ sued in 1864, after the 1856-1863 cents were a 88-12 copper-nickel alloy that gave them a nickel-like appearance.nswer   1958.   In 1959, the 50th anniversary of the first (1909) Lincoln cent, the wheat ears were replaced with a picture of the Lincoln Memorial.     Wheat â¦ cents were made from 1909 to 1958.