भौतिकशास्त्र परिभाषा कोश

Light सोपान जाल, एशेलॉन जाल

n. १ Acous. (a sound-wave which has been reflected at one or more points with sufficient magnitude,. . . . . . .etc.) प्रतिध्वनि (पु.) २ Radar (as, sound or visual indication caused by a reflected radio-wave or radio signal) प्रतिक्षिप्त (न.)

(the determination of depth of water by the measurement of the time interval required for a sonic or supersonic pulse reach the transmission point after being reflected from the bottom) प्रतिध्वनि गभीरता परिज्ञापन

(determination of a distance and direction of an object as under water by means of an echo returned by the object) प्रतिध्वनि स्थानन

n. प्रतिध्वनिमापी (पु.)

n. Ocean. (a sounding apparatus, used in sea water, for determining automatically the depth of sea beneath a ship) प्रतिध्वनित्र (न.)

n. प्रतिध्वनि परिज्ञापन (न.)

n. Astron. ग्रहण (न.)

adj. ग्रहणशील, ग्रहणकारी

(also eclipsing binary star or eclipsing double star) Astron. ग्रहणशील द्वैती तारा

eclipsing binary

adj. पारिस्थितिक

पारिस्थितिक पर्यावरण

n. पारिस्थितिकीविज्ञ (पु.)

n. (also oecology or aecology) (the study of organisms in relation to their environment) पारिस्थितिकी (स्त्री.)

adj. १ आर्थिक २ उपयुक्त

मितव्ययी क्षमता

उपयुक्त खनिज

adj. १ मितव्ययी २ (as, economic) आर्थिक

n. (a current as of air or water running contrary to the main current esp. one moving circularly) विवर्त (पु.), भोवरा (पु.)