diff --git a/library/device.dcm b/library/device.dcm
index 118a00fb..18e7b02c 100644
--- a/library/device.dcm
+++ b/library/device.dcm
@@ -348,31 +348,31 @@ K diode
 $ENDCMP
 #
 $CMP D_TVS
-D transient-voltage-suppression (TVS) diode
+D Bidirectional transient-voltage-suppression (TVS) diode
 K diode TVS thyrector
 F https://en.wikipedia.org/wiki/Transient-voltage-suppression_diode
 $ENDCMP
 #
 $CMP D_TVS_ALT
-D transient-voltage-suppression (TVS) diode, alternativ symbol
+D Bidirectional transient-voltage-suppression (TVS) diode, alternative symbol
 K diode TVS thyrector
 F https://en.wikipedia.org/wiki/Transient-voltage-suppression_diode
 $ENDCMP
 #
 $CMP D_TVS_x2_AAC
-D dual transient-voltage-suppression (TVS) diode (center=pin3)
+D Bidirectional dual transient-voltage-suppression (TVS) diode (center=pin3)
 K diode TVS thyrector
 F https://en.wikipedia.org/wiki/Transient-voltage-suppression_diode
 $ENDCMP
 #
 $CMP D_TVS_x2_ACA
-D dual transient-voltage-suppression (TVS) diode (center=pin2)
+D Bidirectional dual transient-voltage-suppression (TVS) diode (center=pin2)
 K diode TVS thyrector
 F https://en.wikipedia.org/wiki/Transient-voltage-suppression_diode
 $ENDCMP
 #
 $CMP D_TVS_x2_CAA
-D dual transient-voltage-suppression (TVS) diode (center=pin1)
+D Bidirectional dual transient-voltage-suppression (TVS) diode (center=pin1)
 K diode TVS thyrector
 F https://en.wikipedia.org/wiki/Transient-voltage-suppression_diode
 $ENDCMP