subtype

From sub- +‎ type.

subtype (plural subtypes)

1. A group of specific things within a larger, more general group.
   • 2025 January 27, Edward Helmore, “First outbreak of rare bird flu strain reported at California poultry farm”, in The Guardian‎^[1]:

     Highly pathogenic bird flu (HPAI) is of rising concern to epidemiologists. The US National Library of Medicine lists H5N9 as a subtype avian influenza virus.

2. (programming) The data type represented by a subclass.

subtype (third-person singular simple present subtypes, present participle subtyping, simple past and past participle subtyped)

1. To categorise as a subtype.

• subclassify