25TH

 Dictionary entry overview: What does 25th mean? 

• 25TH (adjective)
  The adjective 25TH has 1 sense:

1. coming next after the twenty-fourth in position

  Familiarity information: 25TH used as an adjective is very rare.

 Dictionary entry details 

• 25TH (adjective)

Sense 1

Meaning:

Coming next after the twenty-fourth in position

Synonyms:

25th; twenty-fifth

Similar:

ordinal (being or denoting a numerical order in a series)

 Context examples 

Now in its 25th year, NSF's McMurdo Dry Valleys Long-Term Ecological Research (LTER) project has provided a continuous multi-decade record of atmospheric and ecological data at the research site.

(Extreme melt season leads to decade-long ecosystem changes in Antarctica's Dry Valleys, National Science Foundation)

The researchers then compared growth measurements of head circumference, abdominal circumference, and femur (thigh bone) length of the fetuses of women in the 75th percentile to those of women in the 25th percentile.

(Persistent organic pollutants in maternal blood linked to smaller fetal size, National Institutes of Health)

New Horizons' milestone matches precisely the 25th anniversary of the historic encounter of NASA's Voyager 2 spacecraft with Neptune on Aug. 25, 1989.

(NASA Pluto-Bound Spacecraft Crosses Neptune's Orbit, NASA)

They found that, compared to fetuses in the 25th percentile of exposure to organochlorine pesticides, the fetuses of women with exposure in the 75th percentile had the most widespread growth reductions, with head circumference reduced by an average of 4.7 mm, abdominal circumference reduced by 3.5 mm, and femur length reduced by 0.6 mm.

(Persistent organic pollutants in maternal blood linked to smaller fetal size, National Institutes of Health)