Make spelling and terminology consistent

base_classes/NXregion.nxdl.xml

@@ -55,7 +55,7 @@
 	<attribute name="type" optional="false">
 		<doc>
 			This is ``rectangular`` to describe the region as a hyper-rectangle in
-			the index space of its parent group's data array
+			the index space of its parent group's data field
 		</doc>
 		<enumeration>
 			<item value="rectangular" />
@@ -75,7 +75,7 @@
 	</field>
 	<field name="start" type="NX_NUMBER" recommended="true">
 		<doc>
-			The starting position for region in detector data array.
+			The starting position for region in detector data field array.
 			This is recommended as it also defines the region rank.
 			If omitted then defined as an array of zeros
 		</doc>
@@ -87,7 +87,7 @@
 		<doc>
 			The number of blocks or items in hyperslab selection.
 			If omitted then defined as an array of dimensions that take into account
-			the other hyper-slab selection fields to span the parent data field's shape
+			the other hyperslab selection fields to span the parent data field's shape
 		</doc>
 		<dimensions rank="1">
 			<dim index="1" value="R"/>