UK: /ɪnvˈɜːtɪbɹˌeɪt/ US: /ˌɪnˈvɝtəˌbɹeɪt/, /ˌɪnˈvɝtəbɹət/
l. hrygglaus; staðfestulaus, stefnulaus; n. hrygglaust dýr (invertebrate animal); stefnuleysingi