Having two of the same allele at a locus, or base at a SNP, where both copies are from a single ancestor strand.

Having two of the same allele at a locus, or base at a SNP, where both copies are from a single ancestor strand.

(Internet slang, email, text messaging) Abbreviation of happy birthday.

Initialism of human biodiversity.

(Internet) Initialism of how 'bout you?.

(television, computing) Abbreviation of horizontal blanking.

(retail) health and beauty care / (veterinary medicine) hit by car / (organic chemistry) Abbreviation of hexabenzocoronene.

(Canada, historical) Hudson's Bay Company, a major Canadian retailer and former British Crown corporation on the North American fur trade.

(baseball) Initialism of hit-by-pitch.

(information science, neuroinformatics) Initialism of Human Brain Project.