diff --git a/data/fields/circumference.json b/data/fields/circumference.json
index 7475a469..5fa71e4b 100644
--- a/data/fields/circumference.json
+++ b/data/fields/circumference.json
@@ -1,7 +1,11 @@
 {
     "key": "circumference",
     "type": "combo",
-    "label": "Circumference",
+    "label": "Circumference (at Breast Height)",
     "snake_case": false,
-    "placeholder": "1 m, 20 cm, 30\"…"
+    "placeholder": "1 m, 20 cm, 30\"…",
+    "terms": [
+        "DBH",
+        "diameter at breast height"
+    ]
 }
diff --git a/interim/source_strings.yaml b/interim/source_strings.yaml
index 2110e116..20e1dadf 100644
--- a/interim/source_strings.yaml
+++ b/interim/source_strings.yaml
@@ -556,7 +556,7 @@ en:
         placeholder: YYYY-MM-DD
       circumference:
         # circumference=*
-        label: Circumference
+        label: Circumference (at Breast Height)
         # circumference field placeholder
         placeholder: 1 m, 20 cm, 30"…
       clothes: