upper

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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

upper

[′əp·ər]
(geology)
Pertaining to rocks or strata that normally overlie those of earlier formations of the same subdivision of rocks.
References in periodicals archive ?
Fortunes ebbed and flowed throughout before Street gained the upper hand.
Both Saracens and their visitors showed width and ambition in their opening attacks but Clermont's pack gained the upper hand in the scrum and that enabled them to quickly get the scoreboard ticking over.
The single European currency buyback gained the upper hand against other major currencies as risk-averse sentiment receded among investors due to smooth bond auctions in Spain and France on Thursday.
CRICKET: South Africa gained the upper hand in the Second Test against Pakistan in Lahore after a strong showing yesterday.
He gained the upper hand in the second set with a break in the fourth.
But Yamaha Italia rider Haga gained the upper hand in yesterday's first qualifying session by setting the fastest time with a lap of one minute 40.
Oram hit an unbeaten 63 off 108 balls to help the Black Caps reach 250 for seven at stumps in Brisbane, guiding his side back after Australia had gained the upper hand earlier in the day.
Aided by cool, moist weather, firefighters gained the upper hand Thursday on the week-old Simi Valley Fire, which threatened communities miles apart but backed up to the same vast wilderness.
PHIL DOLMAN fired the only goal in the Wirral FA Junior Cup as Acorn again gained the upper hand over South Wirral League rivals Bebington Athletic to progress into the last eight.
Such talk led some liberals to believe they had gained the upper hand in the struggle with the DLC.
Although human efforts produced some amazing results and, especially in the early nineteenth century, seemed to have gained the upper hand, ultimately nature won out, most obviously in the form of flooding caused by hurricanes and simple depletion of the already poor soil.
Susa gained the upper hand and remained an urban center into the 3rd millennium B.