What is "day-old"

Usage examples of "day-old".

Burchuladze, R and Rose, S P R Memory formation in day-old chicks requires NMDA but not non-NMDA glutamate receptors, in press, 1992.

I had half a day-old loaf, a little butter, some yoghurt, a tin of beans, a packet of sliced ham, an almost-empty jar of peanut butter, some breakfast cereal but no milk.

Essentially the experimental design involved exposing day-old chicks to an imprinting stimulus, injecting them with radioactive precursors to RNA or protein, and measuring the amount of radioactivity in protein or RNA extracted from different brain regions.

He rummaged around in his outer coat, sorting through his pocket litter: a cigarette butt, a sliver of soap wrapped in a soiled handkerchief that served as a washcloth, part of a day-old pastrami sandwich and a piece of an onion bagel found in a garbage can behind a deli.

He'd dined on poached eggs, crisp bacon and day-old bread recovered from the previous night's meal that had been toasted to disguise its origins.

I told you your wife would give you merry hell about buying that day-old bread - penny wise and pound foolish, the old saying is - and I bet I was right, wasn't I?

Day-old chicks don't actually need to eat (they still have plenty of reserve food in a yolk sac, which they won't use up for the next day or so), but they do like to practise pecking and play with the crumbs.