tare

The tare of a container is its weight when it's empty, which is important to know when you can't weigh something without putting it into something else.

Since you can't measure the weight of, say, olive oil without putting it into a container, you need to find out how much the container weighs, its tare, so you don't add that to the weight of the olive oil. The same thing goes for cargo containers, trucks, airplanes, railroad cars. In chemistry, a tare is a counterweight used on this same principle. Tare is also a kind of weedy grass that grows in grain fields or that's raised for forage.

Primary Meanings of tare

1.
n
weedy annual grass often occurs in grainfields and other cultivated land; seeds sometimes considered poisonous
2.
n
the weight of a motor vehicle, railroad car, or aircraft without its fuel or cargo
Full Definitions of tare
1

n weedy annual grass often occurs in grainfields and other cultivated land; seeds sometimes considered poisonous

Synonyms:
Lolium temulentum, bearded darnel, cheat, darnel
Type of:
rye grass, ryegrass
any of several annual or perennial Eurasian grasses

n any of several weedy vetches grown for forage

Types:
Vicia villosa, hairy tare, hairy vetch
European vetch much cultivated as forage and cover crops
Type of:
vetch
any of various climbing plants of the genus Vicia having pinnately compound leaves that terminate in tendrils and small variously colored flowers; includes valuable forage and soil-building plants
2

n the weight of a motor vehicle, railroad car, or aircraft without its fuel or cargo

Type of:
weight
the vertical force exerted by a mass as a result of gravity

n an adjustment made for the weight of the packaging in order to determine the net weight of the goods

Type of:
adjustment, allowance
an amount added or deducted on the basis of qualifying circumstances

n (chemical analysis) a counterweight used in chemical analysis; consists of an empty container that counterbalances the weight of the container holding chemicals

Type of:
balance, counterbalance, counterpoise, counterweight, equaliser, equalizer
a weight that balances another weight

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