ACOUSTIC IMPEDANCE

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does acoustic impedance mean? 

• ACOUSTIC IMPEDANCE (noun)
  The noun ACOUSTIC IMPEDANCE has 1 sense:

1. opposition to the flow of sound through a surface; acoustic resistance is the real component of acoustic impedance and acoustic reactance is the imaginary component

  Familiarity information: ACOUSTIC IMPEDANCE used as a noun is very rare.

 Dictionary entry details 

• ACOUSTIC IMPEDANCE (noun)

Sense 1

Meaning:

Opposition to the flow of sound through a surface; acoustic resistance is the real component of acoustic impedance and acoustic reactance is the imaginary component

Classified under:

Nouns denoting natural phenomena

Synonyms:

acoustic impedance; acoustic reactance; acoustic resistance

Hypernyms ("acoustic impedance" is a kind of...):

resistance (any mechanical force that tends to retard or oppose motion)

 Context examples 

After administration in microsphere form, perflutren exhibits lower acoustic impedance than blood and improves ultrasound signaling.

(Perflutren, NCI Thesaurus)

Because the acoustic impedance of perflutren lipid microspheres is much lower than that of blood, impinging ultrasound waves are scattered and reflected at the microsphere-blood interface and may be visualized with ultrasound imaging.

(Perflutren Lipid Microspheres, NCI Thesaurus)

Because the acoustic impedance of perflutren protein-type A microspheres is much lower than that of blood, impinging ultrasound waves are scattered and reflected at the microsphere-blood interface and may be visualized with ultrasound imaging.

(Perflutren Protein-Type A Microspheres, NCI Thesaurus)