visarga (visarga)是梵语词，意为“发出，泻出”。在梵语音韵学(śikṣā)中，visarga (等价的被更早的文法家叫做 visarjanīya)是一个音素 [h] 的名字，写为 IAST <ḥ>、Harvard-Kyoto <H>、天城文 <ः>。visarga 是在停顿中的 /r/ 和 /s/ 的同位异音。因为 /-s/ 是常见的后缀(主格单数，第二人称单数等)，止韵经常出现在梵语文本中。在梵语音素的传统次序中，止韵和随韵独立于元音和辅音之外。

Visarga (IAST: visarga) (Sanskrit:विसर्गः) meaning "sending forth, discharge". In Sanskrit phonology (śikṣā), visarga (also called, equivalently, visarjanīya by earlier grammarians) is the name of a phone, [h], written as:

Visarga is an allophone of /r/ and /s/ in pausa (at the end of an utterance). Since /-s/ is a common inflectional suffix (of nominative singular, second person singular, etc.), visarga appears frequently in Sanskrit texts. In the traditional order of Sanskrit sounds, visarga and anusvāra appear between vowels and stop consonants.