This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A group forming a type within a larger type.

n. A group of specific things within a larger, more general group.

n. The data type represented by a subclass.

v. To categorise as a subtype.

n. In biology, a more special type included in a more general one.

"Possibly my favorite subtype is the SFF book that taps into capital-L Literary stories and frameworks and reimagines them."

subclassify   

subtypes    chemokine    desensitization    toll-like    glucocorticoid    adiponectin    downregulation    melanogaster    hemagglutinin    muscarinic