DAY-OLD

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does day-old mean? 

• DAY-OLD (adjective)
  The adjective DAY-OLD has 1 sense:

1. not fresh today

  Familiarity information: DAY-OLD used as an adjective is very rare.

 Dictionary entry details 

• DAY-OLD (adjective)

Sense 1

Meaning:

Not fresh today

Context example:

day-old bread is cheaper than fresh

Similar:

stale (lacking freshness, palatability, or showing deterioration from age)

 Context examples 

Established from only 300 embryonic stem cells, these structures, called ‘gastruloids’, exhibit developmental features and organisation comparable to the posterior part of a six to ten day-old embryo.

(Scientists develop mouse ‘embryo-like structures’ with organisation along body’s major axes, University of Cambridge)

Hunting herself for meat, up the left fork of the stream where lived the lynx, she had followed a day-old trail of One Eye.

(White Fang, by Jack London)

Three-day-old healthy flies lived for about 100 hours after exposure to free radicals, and that time decreased with age.

(NIH scientists search for the clocks behind aging brain disorders, National Institutes of Health)

To investigate, the team examined the auditory organs of 6-day-old chick embryos.

(Hearing different frequencies, NIH)

When they performed the same experiments on 10-day-old mutant flies and compared the results with the standard curve, they found that the flies were “older” than their chronological age.

(NIH scientists search for the clocks behind aging brain disorders, National Institutes of Health)