Clan \Clan\, n. [Gael. clann offspring, descendants; akin to Ir. clann, cland, offspring, tribe, family; perh. from L. plania scion, slip, cutting. Cf. Plant, n.]

1. A tribe or collection of families, united under a chieftain, regarded as having the same common ancestor, and bearing the same surname; as, the clan of Macdonald. ``I have marshaled my clan.'' --Campbell.

2. A clique; a sect, society, or body of persons; esp., a body of persons united by some common interest or pursuit; -- sometimes used contemptuously.

Partidge and the rest of his clan may hoot me. --Smolett.

The whole clan of the enlightened among us. --Burke.

Source: Webster's Revised Unabridged Dictionary (1913)