scan ( scans plural & 3rd person present) ( scanning present participle) ( scanned past tense & past participle )
1 verb When you scan written material, you look through it quickly in order to find important or interesting information.
She scanned the advertisement pages of the newspapers... V n
I haven't read much into it as yet. I've only just scanned through it. V through n
Scan is also a noun., n-sing
I just had a quick scan through your book again.
2 verb When you scan a place or group of people, you look at it carefully, usually because you are looking for something or someone.
The officer scanned the room... V n
She was nervous and kept scanning the crowd for Paul... V n for n
He raised the binoculars to his eye again, scanning across the scene. V prep
3 verb If people scan something such as luggage, they examine it using a machine that can show or find things inside it that cannot be seen from the outside.
Their approach is to scan every checked-in bag with a bomb detector. V n
...routine scanning of luggage.
4 verb If a computer disk is scanned, a program on the computer checks the disk to make sure that it does not contain a virus. (COMPUTING)
The disk has no viruses<endash>I've scanned it already. V n
5 verb If a picture or document is scanned into a computer, a machine passes a beam of light over it to make a copy of it in the computer. (COMPUTING) usu passive
The entire paper contents of all libraries will eventually be scanned into computers... be V-ed into/onto n
Designs can also be scanned in from paper. be V-ed in/on
6 verb If a radar or sonar machine scans an area, it examines or searches it by sending radar or sonar beams over it.
The ship's radar scanned the sea ahead. V n
7 n-count A scan is a medical test in which a machine sends a beam of X-rays over a part of your body in order to check that it is healthy.
usu with supp
He was rushed to hospital for a brain scan.
8 n-count If a pregnant woman has a scan, a machine using sound waves produces an image of her womb on a screen so that a doctor can see if her baby is developing normally.
9 verb If a line of a poem does not scan, it is not the right length or does not have emphasis in the right places to match the rest of the poem.
usu with brd-neg
He had written a few poems. Sid told him they didn't scan. V