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.
Hundreds of millions of Bicentennial coins were struck during 1975 and 1976 â both in the regular copper-nickel clads for circulation and in a 40% silver clad composition for collectors. The silver Bicentennial coins were sold in mint sets and proof sets. These mint sets and proof sets were first sold in 1975 and remained mint offerings into the mid-1980s. The U.S. Mint wound up melting millions of unsold silver Bicentennial coins. Bicentennial Coin Varieties.