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upper

1. Geology archaeol denoting the late part or division of a period, system, formation, etc.
2. Maths (of a limit or bound) greater than or equal to one or more numbers or variables
3. Informal any tooth of the upper jaw
4. Slang any of various drugs having a stimulant or euphoric effect
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

upper

[′əp·ər]
(geology)
Pertaining to rocks or strata that normally overlie those of earlier formations of the same subdivision of rocks.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
This made it possible to observe coral reefs and ocean life in the uppermost layers of the ocean and also introduced a new sport, scuba diving.
Among these were the diversification of elite family enterprise into the ownership of rural estates as well as urban property, a certain tendency toward endogamy in merchant marriages, strategies (not always successful, admittedly) for the preservation of merchant family wealth and status, a marked impulse to purchase or otherwise gain access to political office, and a drive to attain the uppermost rungs of the social ladder nonetheless blocked to all but a few merchants by the taint of trade.
Uppermost should be the question, What is the time period that allows the most realistic and accurate picture of our marketing performance?"
The uppermost Indus (Khyber-Hazara-Kashmir) basin is the lateral extension of Upper Indus (Kohat-Potwar) Basin in the Paleo-downward slopes.
WHAT a wonderful world it would be if, as the weather maintains its icy grip on the region, concern for older citizens was uppermost in everyone's thinking.
I flung myself under the nearest bush, but my uppermost thought was protecting the bag of sugar as it was the week's family ration and could not be replaced.
Excuse me for perhaps being a bit old-fashioned, but I was under the impression that people connected to a political party were supposed to have public interest uppermost in their mind.
Come ye faithful bring friends and relations That splendour of new buildings We fill all with exaltations LiverpoolOne, it's got to be seen It's a shopaholic's paradise Every designer-seekers dream Mountains of glass glisten in the sun Some buildings like ocean liners Are ready to sail on a voyage of fun Over one hundred and sixty high street names Acres of parking spaces and information relays With upper tiers, lower tiers, walkways to amaze 'One' it's an old Mersey beat with a new Liverpool sound Structures are amazing and they're built on solid ground It's in tune with the present it's regeneration of the past It's uppermost culture with an oh so impressive cast It's the place to be seen whenever in town In this year of celebrations Liverpool One wears the crown.
As any member of the Scout and Guide Movements will be able to tell you, the broad white stripe is uppermost on the side of the flag which is closest to the flagpole.
Judge Stephen Hopkins QC, told McCann, of Bryn Hedd, Gilfach Goch: "A jail sentence is uppermost in my mind."
Encourage the uppermost Brussels sprouts to swell by pinching out the stem tip.