son‧o‧gram /ˈsɒnəɡræm $ ˈsɑː-/
noun [countable] American English technical[
Date: 1900-2000;
Language: Latin;
Origin: sonus ( ⇒ sound1) + English -gram]
an image, for example of an unborn baby inside its mother’s body, that is produced by a special machine
Synonym : ultrasound British English [TahlilGaran] Dictionary of Contemporary English ▲