acre
noun
a unit for measuring the surface area of land, equal to 4,047 square metres
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noun
maths
the amount of space that the surface of a place or shape covers. Area is expressed in square units, such as square kilometres or square milesnoun
body mass index: a measurement of the amount of fat in someone’s body, calculated by dividing their weight in kilograms by their height in metres squared
noun
a unit for measuring grain, vegetables etc equal to 36.4 litres in the UK or 35.24 litres in the US
noun
a unit for measuring weight in the metric system. There are 100 centigrams in one gram.
noun
British
a unit for measuring weight that is equal to 112 pounds or 50.8 kilogramsnoun
American
a unit for measuring weight that is equal to 100 pounds or 45.36 kilogramsnoun
a unit for measuring weight in the metric system, containing 1000 grams. The written abbreviation is kg.
noun
a unit for measuring weight in the metric system. There are 1000 milligrams in one gram.
noun
a unit for measuring weight, equal to 28.35 grams. The written abbreviation for ounce is oz
noun
a unit for measuring the amount of something dry such as grain or fruit, containing eight quarts
noun
a unit for measuring weight, used in several countries including the US and the UK, containing 16 ounces and equal to 0.454 kilograms. Its written abbreviation is lb.
noun
British
a unit for measuring weight, containing four ounces and equal to 0.113 kilogramsnoun
British
a unit for measuring weight containing 14 pounds, equal to 6.35 kilograms. This is used especially when talking about someone’s weightnoun
a unit for measuring weight, equal to 1,000 kilograms. A tonne is also called a metric ton

used to describe something which is done more carefully and over a longer period of time …
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the practice of giving birth in the presence of several friends and relatives
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