subfamily noun. ['sʌbfamɪli, -m(ǝ)l-] M19.
[from SUB- 2b + FAMILY.]
1. Taxonomy. A taxonomic grouping ranking next below a family. Also gen., a subdivision of a family in classification (e.g. in linguistics). M19.

2. A subdivision of a human family, esp. consisting of a person living with a spouse or child within a larger primary family group. M20.

[TahlilGaran] English Dictionary ▲