home / medterms medical dictionary a-z list / granular leukocyte definition Medical Definition of Granular leukocyte Granular leukocyte: A type of white blood cell filled with microscopic granules (tiny sacs) containing enzymes that digest microorganisms. Granular leukocytes-- they are better known as granulocytes -- are part of the innate immune system and have somewhat non specific, broad-based activity. They do not respond exclusively to specific antigens, as do B-cells and T-cells.
Single (music) In music, a single or record single is a type of release, typically a song recording of fewer tracks than an LP record, an album or an EP record. This can be released for sale to the public in a variety of different formats.
<br /> EP stands for extended play as EP records are longer than original single 45 records, usually containing 4 tracks. Artists usually release an EP before the full album to give the fans a taste of what is coming. The EP may include anywhere from 2 to 10 songs depending on the length of the full album. <br /><br /> A good example of an EP containing 4 tracks was the Beatles' 'Twist and Shout (EP)'.