Effect That Can Be Perceived in Sirens or Radar

This page is the CodyCross answer for the clue below from Earth, Group 5, Puzzle 4.

Question

Effect That Can Be Perceived in Sirens or Radar

Answer

DOPPLER

Word Meaning:

DOPPLER — (medicine, by ellipsis, informal) Ellipsis of Doppler ultrasonography: Any of various types of ultrasonography that use the Doppler effect; especially, medical versions thereof.

Definitions from Wiktionary.

Effect that can be perceived in sirens or radar Earth Answers