Confluent

Part of speech: noun (n.)

1. A small steam which flows into a large one.

2. The place of meeting of steams, currents, etc. [Obs.] Holland.

Part of speech: adjective (a.)

1. Flowing together; meeting in their course; running one into another.

2. (Bot.) Blended into one; growing together, so as to obliterate all distinction.

3. (Med.)

4. Running together or uniting, as pimples or pustules.

5. Characterized by having the pustules, etc., run together or unite, so as to cover the surface; as, confluent smallpox. Dunglison.