echˈōize or echˈōise intransitive verb

echˈoless adjective

1. Giving no echo
2. Unresponsive

echocarˈdiogram noun

The record produced by echocardiogˈraphy, the investigation by means of ultrasound of certain internal parts of the heart and the ways in which they move in order to detect disease esp of the heart valves

echocarˈdiograph noun

echocardiographˈic adjective

echoencephˈalogram noun (medicine)

The record produced by echoencephalogˈraphy, the investigation of brain tissues by means of ultrasound waves beamed through the head

echˈograph noun

An echo-sounder

echolalia /ek-ō-lāˈli-ə/ noun

(Gr laliā talk) senseless or compulsive repetition of words heard, occurring in forms of mental illness

echopraxˈia or echopraxˈis noun

(Gr praxis doing) in mental illness, the imitation of postures or movements of those around one

echo chamber noun

A room in which sound can be echoed for recording or radio effects or when measuring acoustics

echo location noun

Determining the position of objects by means of supersonic vibrations echoed from them, as a bat does

echˈo-sounder noun

The device used in echo-sounding

echˈo-sounding noun

A method of measuring the depth of water, locating shoals of fish, etc, by noting the time taken for an echo to return from the bottom, the shoal, etc

echˈovirus or ECHO virus noun

Any of a group of viruses which can cause respiratory and intestinal diseases and meningitis (enteric cytopathogenic human orphan virus)

cheer to the echo

To applaud heartily