释义 |
WordReference Random House Unabridged Dictionary of American English © 2024ech•o•graph (ek′ō graf′, -gräf′),USA pronunciation n. - Physicsa device that records oceanic depths by means of sonic waves.
- Medicinea similar device used in ultrasonography to examine internal body structures or monitor fetal development.
ech•o•graph•ic (ek′ō graf′ik),USA pronunciation adj. ech′o•graph′i•cal•ly, adv. e•chog•ra•phy (e kog′rə fē),USA pronunciation n. |