Funnily enough, "nominal syntagm" is, itself, not in the OED or Wiktionary. But Wiktionary has "syntagme nominal" as the French translation for "noun phrase".

Funnily enough, "nominal syntagm" is, itself, not in the OED or Wiktionary. But Wiktionary has "syntagme nominal" as the French translation for "noun phrase". You really have to love the human messiness of language!