diff --git a/core/lexicon.json b/core/lexicon.json
index 2a37686e..32757116 100644
--- a/core/lexicon.json
+++ b/core/lexicon.json
@@ -8241,6 +8241,13 @@
       "term": "Hand",
       "definition": "Hand Pump"
     },
+    {
+      "categories": [
+        "well_pump_type"
+      ],
+      "term": "Windmill",
+      "definition": "Windmill"
+    },
     {
       "categories": [
         "permission_type"