Voiceless linguolabial fricative

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Voiceless linguolabial fricative
θ̼
ɸ̺
IPA number	130 407
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The voiceless linguolabial fricative is a type of consonantal sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents it is ⟨θ̼⟩ or ⟨ɸ̺⟩.

Features

Features:

Its manner of articulation is fricative, which means it is produced by constricting air flow through a narrow channel at the place of articulation, causing turbulence.
Its place of articulation is linguolabial, which means it is articulated with the tongue against the upper lip.
Its phonation is voiceless, which means it is produced without vibrations of the vocal cords.
It is an oral consonant, which means air is allowed to escape through the mouth only.
Its airstream mechanism is pulmonic, which means it is articulated by pushing air solely with the intercostal muscles and abdominal muscles, as in most sounds.

Language		Word	IPA	Meaning	Notes
Big Nambas^[1]			[ˈinɛθ̼]	'he is asthmatic'

IPA topics

IPA	International Phonetic Association History of the alphabet Extensions for disordered speech (extIPA) Voice Quality Symbols (VoQS) Journal of the IPA (JIPA)
Special topics	Cursive forms Case variants Obsolete and nonstandard symbols Naming conventions Sinological extensions World Orthography IPA chart for English dialects
Encodings	ASCII encodings SAMPA X-SAMPA Kirshenbaum TIPA Phonetic symbols in Unicode IPA number IPA Braille

Pulmonic consonants

Symbols to the right in a cell are voiced, to the left are voiceless. Shaded areas denote articulations judged impossible.

Non-pulmonic consonants

		BL	LD	D	A	PA	RF	P	V	U	EG
Ejective	Stop	pʼ			tʼ		ʈʼ	cʼ	kʼ	qʼ	ʡʼ
	Affricate		p̪fʼ	t̪θʼ	tsʼ	t̠ʃʼ	tʂʼ	tɕʼ	kxʼ	qχʼ
	Fricative	ɸʼ	fʼ	θʼ	sʼ	ʃʼ	ʂʼ	ɕʼ	xʼ	χʼ
	Lateral affricate				tɬʼ			c𝼆ʼ	k𝼄ʼ	q𝼄ʼ
	Lateral fricative				ɬʼ
Click (top: velar; bottom: uvular)	Tenuis	kʘ qʘ		kǀ qǀ	kǃ qǃ		k𝼊 q𝼊	kǂ qǂ
	Voiced	ɡʘ ɢʘ		ɡǀ ɢǀ	ɡǃ ɢǃ		ɡ𝼊 ɢ𝼊	ɡǂ ɢǂ
	Nasal	ŋʘ ɴʘ		ŋǀ ɴǀ	ŋǃ ɴǃ		ŋ𝼊 ɴ𝼊	ŋǂ ɴǂ	ʞ
	Tenuis lateral				kǁ qǁ
	Voiced lateral				ɡǁ ɢǁ
	Nasal lateral				ŋǁ ɴǁ
Implosive	Voiced	ɓ			ɗ		ᶑ	ʄ	ɠ	ʛ
Implosive	Voiceless	ɓ̥			ɗ̥		ᶑ̊	ʄ̊	ɠ̊	ʛ̥