diff --git a/docs/glossary.md b/docs/glossary.md
index 3718a85..8517b5b 100644
--- a/docs/glossary.md
+++ b/docs/glossary.md
@@ -45,7 +45,7 @@ The dynamically-loadable Rust library form of a project and its nodes, hot-reloa
 
 ### composite
 **Avoid:** —
-A node that wires a sub-graph and exposes one output (a combined signal, or a strategy) — composition is fractal and acyclic. Also names a multi-column stream that bundles base scalar columns (e.g. OHLCV).
+A node that wires a sub-graph and exposes one output (a combined signal, or a strategy) — composition is fractal and acyclic. Also names the multi-column stream a node emits: the **record** a producer's `eval` returns, bundling 1..K base scalar columns (e.g. OHLCV), each bound field-wise by a consumer (C7/C8).
 
 ### cycle
 **Avoid:** —
@@ -53,7 +53,7 @@ One data-driven clock step: one input record = one cycle, advanced in global tim
 
 ### edge
 **Avoid:** —
-A directed wiring link in a harness that forwards one node's `eval` output into a consumer node's input slot (the engine's `Edge`); the source-side variant binding the source value into an input slot is a **source target** (`Target`). Edges define the DAG the bootstrap topologically orders; mismatched scalar kinds across an edge are rejected at bootstrap.
+A directed wiring link in a harness that forwards **one field** (`from_field`) of a producer node's `eval` output record into a consumer node's input slot (the engine's `Edge`); the source-side variant binding the source value into an input slot is a **source target** (`Target`). Edges define the DAG the bootstrap topologically orders; a per-field scalar-kind mismatch across an edge is rejected at bootstrap.
 
 ### equity stream
 **Avoid:** —
@@ -105,7 +105,7 @@ An orchestration axis running N seeded realizations that perturb the input; each
 
 ### node
 **Avoid:** block
-The universal composable dataflow unit, implementing `schema()` + `eval(ctx)`, with at most one output; a producer, a pure consumer (sink), or both. Everything that plugs into the engine is fractally a node.
+The universal composable dataflow unit, implementing `schema()` + `eval(ctx)` — a producer, a pure consumer (sink), or both — with at most one output port; a producer's output is a **record of 1..K base-scalar columns** (a scalar is the degenerate K=1 case). Everything that plugs into the engine is fractally a node.
 
 ### playground
 **Avoid:** —