Sonarnoun
(nautical) echolocation
Fortifyverb
(military) To increase the defenses of; to strengthen and secure by military works; to render defensible against an attack by hostile forces.
Sonarnoun
(nautical) A device that uses hydrophones (in the same manner as radar) to locate objects underwater.
Fortifyverb
(figurative) To impart strength or vigor to.
Sonarnoun
a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return; sonar is an acronym for sound navigation ranging; asdic is an acronym for anti-submarine detection investigation committee
Fortifyverb
(wine) To add spirits to wine to increase the alcohol content.
‘Sherry is made by fortifying wine.’;
Sonar
Sonar (sound navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels. Two types of technology share the name : passive sonar is essentially listening for the sound made by vessels; active sonar is emitting pulses of sounds and listening for echoes.
‘sonar’;
Fortifyverb
(food) To increase the nutritional value of food by adding ingredients.
‘Soy milk is often fortified with calcium.’;
Fortifyverb
To add strength to; to strengthen; to confirm; to furnish with power to resist attack.
‘Timidity was fortified by pride.’; ‘Pride came to the aid of fancy, and both combined to fortify his resolution.’;
Fortifyverb
To strengthen and secure by forts or batteries, or by surrounding with a wall or ditch or other military works; to render defensible against an attack by hostile forces.
Fortifyverb
To raise defensive works.
Fortifyverb
make strong or stronger;
‘This exercise will strengthen your upper body’; ‘strenghten the relations between the two countries’;
Fortifyverb
enclose by or as if by a fortification
Fortifyverb
prepare oneself for a military confrontation;
‘The U.S. is girding for a conflict in the Middle East’; ‘troops are building up on the Iraqui border’;
Fortifyverb
add nutrients to;
‘fortified milk’;
Fortifyverb
add alcohol beverages