See Also: roll 2, noun(dictionary)
roll(3)(dictionary)
Roll down(money)
egg roll(dictionary)
Roll(medicine)
Roll up(money)
Tax Roll(money)
Roll up(finance)
bog roll(dictionary)
Roll over(finance)

opsin (iou) and roll 2, noun (oh)


opsin (iou)



opsin noun. M20.
[Back-form. from RHODOPSIN.]
Biochemistry. A protein combined with retinal in the visual pigment rhodopsin and released by the action of light.

roll 2, noun (oh)



2 n [C]
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1 ?paper/Film/money etc?
2 ?bread?
3 ?list of names?
4 be on a roll
5 ?game?
6 ?skin/fat?
7 ?physical movement?
8 ?drums/guns/thunder?
9 ?ship/plane?
10 a roll in the hay
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[Sense: 1-3, 6; Date: 1100-1200; Language: Old French; Origin: rolle 'rolled-up document', from Latin rotula, from rota; ROTATE]
[Sense: 4-5, 7-10; Date: 1600-1700; Origin: ROLL1]
?PAPER/Film/MONEY ETC?
a piece of paper, camera Film, money etc that has been rolled into the shape of a tube
roll of
::I used up three rolls of Film on holiday.
::There's a new roll of silver foil in there.
::Wallpaper costing ¡ê3 a roll
-see also kitchen roll , toilet roll
?BREAD?
a small round loaf of bread for one person
-see also bun bun
::hot soup served with crusty rolls
:: bread rolls with butter
ham/cheese etc roll BrE (=one that is filled with ham, cheese etc)
?LIST OF NAMES?
an official list of names
-synonym register register on the roll
BrE
::a school with 300 pupils on the roll
call/take the roll
(=say the list of names to check who is there)
::The teacher called the roll.
::Three senators missed the roll call.
the electoral roll BrE ; the (voter) rolls AmE (=a list of the people who are allowed to vote)
welfare rolls AmE (=a list of people without Jobs who claim money from the state)
::Thompson said he had cut welfare rolls by 39%.
-see also roll of honour , honor roll
be on a roll
informal to be having a lot of Success with what you are trying to do
::Midvale High was on a roll, having won their last six Basketball Games.
?GAME?
the action of throwing dice as part of a game
::If you get a 7 or 11 on your first roll, you win.
?SKIN/FAT?
a thick layer of skin or fat, usually just below your waist
roll of
::the rolls of fat on her stomach
?PHYSICAL MOVEMENT?
a) BrE a movement in which you roll forward or back in a controlled way with your body curled so that your head is near your feet, often done as part of a sport
-synonym somersault somersault
::a forward roll
::gymnasts doing rolls and handsprings
b) especially BrE the action of turning your body over one or more times while lying down
::a young horse having a roll in the field
?DRUMS/GUNS/THUNDER?
a long low fairly loud sound made by drums etc
::There was a roll of thunder , and the rain started pelting down.
::a drum roll
?SHIP/PLANE?
the movement of a ship or plane when it leans from side to side with the movement of the water or air
a roll in the hay
old-fashioned informal when you have sex with someone - used humorously
-see also rock 'n' roll , sausage roll , spring roll , Swiss roll