diff --git a/utils/phase0/state_transition.py b/utils/phase0/state_transition.py
index cfd941c42..2c420014f 100644
--- a/utils/phase0/state_transition.py
+++ b/utils/phase0/state_transition.py
@@ -22,31 +22,31 @@ def expected_deposit_count(state: BeaconState) -> int:
     )
 
 
-def process_transaction_type(state: BeaconState,
-                             transactions: List[Any],
-                             max_transactions: int,
-                             tx_fn: Callable[[BeaconState, Any], None]) -> None:
-    assert len(transactions) <= max_transactions
-    for transaction in transactions:
-        tx_fn(state, transaction)
+def process_operation_type(state: BeaconState,
+                           operations: List[Any],
+                           max_operations: int,
+                           tx_fn: Callable[[BeaconState, Any], None]) -> None:
+    assert len(operations) <= max_operations
+    for operation in operations:
+        tx_fn(state, operation)
 
 
-def process_transactions(state: BeaconState, block: BeaconBlock) -> None:
-    process_transaction_type(
+def process_operations(state: BeaconState, block: BeaconBlock) -> None:
+    process_operation_type(
         state,
         block.body.proposer_slashings,
         spec.MAX_PROPOSER_SLASHINGS,
         spec.process_proposer_slashing,
     )
 
-    process_transaction_type(
+    process_operation_type(
         state,
         block.body.attester_slashings,
         spec.MAX_ATTESTER_SLASHINGS,
         spec.process_attester_slashing,
     )
 
-    process_transaction_type(
+    process_operation_type(
         state,
         block.body.attestations,
         spec.MAX_ATTESTATIONS,
@@ -54,14 +54,14 @@ def process_transactions(state: BeaconState, block: BeaconBlock) -> None:
     )
 
     assert len(block.body.deposits) == expected_deposit_count(state)
-    process_transaction_type(
+    process_operation_type(
         state,
         block.body.deposits,
         spec.MAX_DEPOSITS,
         spec.process_deposit,
     )
 
-    process_transaction_type(
+    process_operation_type(
         state,
         block.body.voluntary_exits,
         spec.MAX_VOLUNTARY_EXITS,
@@ -69,7 +69,7 @@ def process_transactions(state: BeaconState, block: BeaconBlock) -> None:
     )
 
     assert len(block.body.transfers) == len(set(block.body.transfers))
-    process_transaction_type(
+    process_operation_type(
         state,
         block.body.transfers,
         spec.MAX_TRANSFERS,
@@ -84,7 +84,7 @@ def process_block(state: BeaconState,
     spec.process_randao(state, block)
     spec.process_eth1_data(state, block)
 
-    process_transactions(state, block)
+    process_operations(state, block)
     if verify_state_root:
         spec.verify_block_state_root(state, block)