'Confluent' definitions:

Definition of 'confluent'

adjective

Flowing together [syn: confluent, merging(a)]

noun

A branch that flows into the main stream [syn: feeder, tributary, confluent, affluent] [ant: distributary]

From: GCIDE

Confluent \Con"flu*ent\, a. [L. confluens, -entis, p. pr. of confluere, -fluxum; con- + fluere to flow. See Fluent.]
1. Flowing together; meeting in their course; running one into another; flowing together to form a single stream.
Syn: merging(prenominal). [1913 Webster]
These confluent steams make some great river's head. --Blackmore. [1913 Webster]
2. (Bot.) Blended into one; growing together, so as to obliterate all distinction. [1913 Webster]
3. (Med.) (a) Running together or uniting, as pimples or pustules. (b) Characterized by having the pustules, etc., run together or unite, so as to cover the surface; as, confluent smallpox. --Dunglison. [1913 Webster]

From: GCIDE

Confluent \Con"flu*ent\, n.
1. A small steam which flows into a large one. [1913 Webster]
2. The place of meeting of steams, currents, etc. [Obs.] --Holland. [1913 Webster]