I. -ˌtīp noun
Etymology: hapl- + type
: the sole species included in the original description of a genus : orthotype
• hap·lo·typ·ic | ̷ ̷ ̷ ̷|tipik adjective
II. noun
: a group of alleles of different genes (as of the major histocompatibility complex) on a single chromosome that are closely enough linked to be inherited usually as a unit