From o/c, from No/c, an abbreviation of Italiannumeropercento(“number per hundred”). For the extension to Astraea is derived from the shift-5 key on the keyboard for asteroid (5).
1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, Chicago, Ill.: Field Museum of Natural History, →ISBN, page x:
For more than 90% of the figures (mostly drawn during 1976-1990), either a scale, or the given magnification, will allow the user to derive accurate measurements, even when these are lacking in the diagnosis.
Decomposition of 4 in the presence of cis-piperylene at room temperature results in the stereocontrolled formation of trans-cycloheptadiene 27 in 90% ee (96% ee at −78 °C).
(computing)Used as a wildcard, usually in SQL, to stand for zero or more characters.
Back-formation from any% or low%, in which the “%” was a literal indicator of the percentage completion the player would achieve in order to qualify for the given leaderboard category.
The suffix was then broadened to form category names in general, where the suffixed term specified some condition about the category, e.g. what score must be obtained, items used, etc., in order to qualify.
