A chromosome in which the centromere is situated close to its end, so that one arm is short and the other is long is
Acrocentric
Depending on the position of the centromere, chromosomes are of the following types:
Metacentric chromosome: The centromere is present right in the middle of the chromosome.
Sub-metacentric chromosome: The centromere is present a little away from the middle of the chromosome.
Acrocentric chromosome: The centromere is present close to one of the ends of the chromosome.
Telocentric chromosome: A terminal centromere.