The purpose of meiosis is to reduce the normal diploid cells (2 copies of each chromosome / cell) to haploid cells, called gametes (1 copy of each chromosome per cell). In humans, these special haploid cells resulting from meiosis are eggs (female) or sperm (male). In yeast cells, they are spores.
Third-party warrant is a derivative issued by the holders of the underlying instrument. Suppose a company issues warrants which give the holder the right to convert each warrant into one share at $500. This warrant is company-issued.
An arrest warrant is an official document, signed by a judge (or magistrate), which authorizes a police officer to arrest the person or people named in the warrant. Warrants typically identify the crime for which an arrest has been authorized, and may restrict the manner in which an arrest may be made. For example, a warrant may state that a suspect can be arrested only between the hours of 6 a.m. and 6 p.m..