Name #139 of 1000 · Viṣṇu Sahasranāma
चतुर्दंष्ट्रःcaturdaṃṣṭraḥ
Chaturdamshtra
He of the four tusks — Narasimha's mighty fangs
From shloka 15 · chapter Kūrma
लोकाध्यक्षः सुराध्यक्षो धर्माध्यक्षः कृताकृतः ।
चतुरात्मा चतुर्व्यूहश्चतुर्दंष्ट्रश्चतुर्भुजः ॥
lokādhyakṣaḥ surādhyakṣo dharmādhyakṣaḥ kṛtākṛtaḥ
caturātmā caturvyūhaścaturdaṃṣṭraścaturbhujaḥ
Also in this shloka: lokādhyakṣaḥ · surādhyakṣaḥ · dharmādhyakṣaḥ · kṛtākṛtaḥ · caturātmā · caturvyūhaḥ · caturbhujaḥ