WebMar 11, 2024 · "In an echo of the KGB tactics employed during the cold war to recruit operatives, organized crime gangs are increasingly using similar tactics to identify and … Webnoun, plural ech·oes. a repetition of sound produced by the reflection of sound waves from a wall, mountain, or other obstructing surface. a sound heard again near its source after being reflected. verb (used without object), ech·oed, ech·o·ing. to emit an echo; resound … Mantis definition, any of several predaceous insects of the order Mantidae, having a …
Ejection fraction: An important heart test - Mayo Clinic
WebJan 25, 2024 · An echocardiogram enables the doctor to generate images of your heart in real-time using ultrasound. Ultrasound, or sounds higher than we can hear, are projected … WebDec 6, 2024 · An echocardiogram (echo) is a test that uses high frequency sound waves (ultrasound) to make pictures of your heart. The American Heart Association explains … grade 4 math textbook
Echo Mini Physics - Learn Physics
WebEchoes synonyms, Echoes pronunciation, Echoes translation, English dictionary definition of Echoes. n. pl. ech·oes 1. a. Repetition of a sound by reflection of sound waves from a surface. b. The sound produced in this manner. 2. A repetition or an... Echoes - definition of Echoes by The Free Dictionary. ... Synonyms: echo, reflect, resound, ... Webecho ( ˈɛkəʊ) n, pl -oes 1. (General Physics) a. the reflection of sound or other radiation by a reflecting medium, esp a solid object b. the sound so reflected 2. a repetition or imitation, … WebMar 19, 2024 · An electrocardiogram records the electrical signals in the heart. It's a common and painless test used to quickly detect heart problems and monitor the heart's health. An electrocardiogram — also called ECG or EKG — is often done in a health care provider's office, a clinic or a hospital room. ECG machines are standard equipment in ... grade 4 maths worksheets south africa