diff --git a/core/modules/migrate/src/EntityFieldDefinitionTrait.php b/core/modules/migrate/src/EntityFieldDefinitionTrait.php
new file mode 100644
index 0000000000..f88e36b4a4
--- /dev/null
+++ b/core/modules/migrate/src/EntityFieldDefinitionTrait.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace Drupal\migrate;
+
+/**
+ * The entity field definition trait.
+ */
+trait EntityFieldDefinitionTrait {
+
+  /**
+   * Gets the field definition from a specific entity base field.
+   *
+   * The method takes the field ID as an argument and returns the field storage
+   * definition to be used in getIds() by querying the destination entity base
+   * field definition.
+   *
+   * @param string $key
+   *   The field ID key.
+   *
+   * @return array
+   *   An associative array with a structure that contains the field type, keyed
+   *   as 'type', together with field storage settings as they are returned by
+   *   FieldStorageDefinitionInterface::getSettings().
+   *
+   * @see \Drupal\Core\Field\FieldStorageDefinitionInterface::getSettings()
+   */
+  protected function getDefinitionFromEntity($key) {
+    $plugin_id = $this->getPluginId();
+    $entity_type_id = $this->getEntityTypeId($plugin_id);
+    /** @var \Drupal\Core\Field\FieldStorageDefinitionInterface[] $definitions */
+    $definitions = $this->entityFieldManager->getBaseFieldDefinitions($entity_type_id);
+    $field_definition = $definitions[$key];
+
+    return [
+      'type' => $field_definition->getType(),
+    ] + $field_definition->getSettings();
+  }
+
+  /**
+   * Finds the entity type from configuration or plugin ID.
+   *
+   * @param string $plugin_id
+   *   The plugin ID.
+   *
+   * @return string
+   *   The entity type.
+   */
+  protected static function getEntityTypeId($plugin_id) {
+    $entity_type_id = NULL;
+    if (strpos($plugin_id, ':')) {
+      list(, $entity_type_id) = explode(':', $plugin_id, 2);
+    }
+    return $entity_type_id;
+  }
+
+}
diff --git a/core/modules/migrate/src/Plugin/migrate/destination/EntityContentBase.php b/core/modules/migrate/src/Plugin/migrate/destination/EntityContentBase.php
index 3f8dae982f..7d141d565a 100644
--- a/core/modules/migrate/src/Plugin/migrate/destination/EntityContentBase.php
+++ b/core/modules/migrate/src/Plugin/migrate/destination/EntityContentBase.php
@@ -12,6 +12,7 @@
 use Drupal\Core\TypedData\TranslatableInterface;
 use Drupal\Core\TypedData\TypedDataInterface;
 use Drupal\migrate\Audit\HighestIdInterface;
+use Drupal\migrate\EntityFieldDefinitionTrait;
 use Drupal\migrate\Exception\EntityValidationException;
 use Drupal\migrate\Plugin\MigrateValidatableEntityInterface;
 use Drupal\migrate\Plugin\MigrationInterface;
@@ -89,6 +90,7 @@
  */
 class EntityContentBase extends Entity implements HighestIdInterface, MigrateValidatableEntityInterface {
   use DeprecatedServicePropertyTrait;
+  use EntityFieldDefinitionTrait;
 
   /**
    * {@inheritdoc}
@@ -370,34 +372,6 @@ public function rollback(array $destination_identifier) {
     }
   }
 
-  /**
-   * Gets the field definition from a specific entity base field.
-   *
-   * The method takes the field ID as an argument and returns the field storage
-   * definition to be used in getIds() by querying the destination entity base
-   * field definition.
-   *
-   * @param string $key
-   *   The field ID key.
-   *
-   * @return array
-   *   An associative array with a structure that contains the field type, keyed
-   *   as 'type', together with field storage settings as they are returned by
-   *   FieldStorageDefinitionInterface::getSettings().
-   *
-   * @see \Drupal\Core\Field\FieldStorageDefinitionInterface::getSettings()
-   */
-  protected function getDefinitionFromEntity($key) {
-    $entity_type_id = static::getEntityTypeId($this->getPluginId());
-    /** @var \Drupal\Core\Field\FieldStorageDefinitionInterface[] $definitions */
-    $definitions = $this->entityFieldManager->getBaseFieldDefinitions($entity_type_id);
-    $field_definition = $definitions[$key];
-
-    return [
-      'type' => $field_definition->getType(),
-    ] + $field_definition->getSettings();
-  }
-
   /**
    * {@inheritdoc}
    */
diff --git a/core/modules/migrate_drupal/src/Plugin/migrate/source/ContentEntity.php b/core/modules/migrate_drupal/src/Plugin/migrate/source/ContentEntity.php
index 1219510fa3..e80de1b7f8 100644
--- a/core/modules/migrate_drupal/src/Plugin/migrate/source/ContentEntity.php
+++ b/core/modules/migrate_drupal/src/Plugin/migrate/source/ContentEntity.php
@@ -9,6 +9,7 @@
 use Drupal\Core\Entity\EntityTypeBundleInfoInterface;
 use Drupal\Core\Entity\EntityTypeManagerInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\migrate\EntityFieldDefinitionTrait;
 use Drupal\migrate\Plugin\migrate\source\SourcePluginBase;
 use Drupal\migrate\Plugin\MigrationInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
@@ -54,6 +55,7 @@
  * )
  */
 class ContentEntity extends SourcePluginBase implements ContainerFactoryPluginInterface {
+  use EntityFieldDefinitionTrait;
 
   /**
    * The entity type manager.
@@ -270,25 +272,4 @@ public function getIds() {
     return $ids;
   }
 
-  /**
-   * Gets the field definition from a specific entity base field.
-   *
-   * @param string $key
-   *   The field ID key.
-   *
-   * @return array
-   *   An associative array with a structure that contains the field type, keyed
-   *   as 'type', together with field storage settings as they are returned by
-   *   FieldStorageDefinitionInterface::getSettings().
-   *
-   * @see \Drupal\migrate\Plugin\migrate\destination\EntityContentBase::getDefinitionFromEntity()
-   */
-  protected function getDefinitionFromEntity($key) {
-    /** @var \Drupal\Core\Field\FieldDefinitionInterface $field_definition */
-    $field_definition = $this->entityFieldManager->getBaseFieldDefinitions($this->entityType->id())[$key];
-    return [
-      'type' => $field_definition->getType(),
-    ] + $field_definition->getSettings();
-  }
-
 }