1. Contraction of the phrase “haploid genotype”, the genetic constitution of an individual with respect to one member of a pair of allelic genes: haplotype can refer to only one locus or to an entire genome (a genome-wide haplotype would comprise half of a diploid genome, including one allele from each allelic gene pair).

2. Set of single nucleotide polymorphisms found to be statistically associated on a single chromatid.