kilogram

noun
ki·​lo·​gram | \ ˈkē-lə-ˌgram How to pronounce kilogram (audio) , ˈki-lə- How to pronounce kilogram (audio) \

Definition of kilogram

1 : the base unit of mass in the International System of Units that is equal to the mass of a prototype agreed upon by international convention and that is nearly equal to the mass of 1000 cubic centimeters of water at the temperature of its maximum density — see Metric System Table
2 : a unit of force or weight equal to the weight of a kilogram mass under a gravitational attraction equal to that of the earth

Keep scrolling for more

Did You Know?

The original concept of the kilogram, as the mass of a cubic decimeter of water (a bit more than a quart), was adopted as the base unit of mass by the new revolutionary government of France in 1793. In 1875, in the Treaty of the Meter, 17 countries, including the U.S., adopted the French kilogram as an international standard. In 1889 a new international standard for the kilogram, a metal bar made of platinum iridium, was agreed to; President Benjamin Harrison officially received the 1-kilogram cylinder for the U.S. in 1890. But no one uses that bar very often; for all practical purposes, a kilogram equals 2.2 pounds.

Examples of kilogram in a Sentence

Recent Examples on the Web In addition to the nationwide arrests, agents seized more than 20 kilograms of drugs and $20 million in cash. NBC News, "U.S. probe into Mexican drug cartel yields 750 arrests," 12 Mar. 2020 Outside a shopping center in Solana Beach, at a bus stop in Claremont and in an apartment in Rancho Cucamonga, pounds of methamphetamine and kilograms of cocaine changed hands, the indictments charge. Matthew Ormseth, Los Angeles Times, "Federal officials announce crackdown on violent drug cartel," 11 Mar. 2020 The incident occurred in the parking lot of an El Dorado furniture store when an undercover agent attempted to buy approximately 1 kilogram of cocaine from Antonoff, according to the incident report from West Palm Beach police. azcentral, "Homeland Security Investigations agents involved in shootings nationwide," 24 Feb. 2020 Billions in taxes raised TAPP proposes that the 27 EU countries start by putting a minimum tax on meat of one-euro-per-kilogram (50 cents per pound) between 2023 and 2025. Adrian Croft, Fortune, "Looking to cut emissions, Europe eyes a ‘sustainability’ tax on meat," 6 Feb. 2020 To begin replacing gray hydrogen in industry, the cost of producing renewable hydrogen needs to drop from about $4 or more per kilogram today to $2 or less. Peter Fairley, Scientific American, "Solar and Wind Power Could Ignite a Hydrogen Energy Comeback," 1 Feb. 2020 Needless to say, this was the 188 kilogram wrestler's first title of an 11-year career and his tears at the end of the 15-day event showed exactly what his victory meant to him. Ben Church, CNN, "Underdog sumo wrestler Tokushoryu bursts into tears after winning first title," 28 Jan. 2020 Krios machines are too tall for the average ceiling heights in most countries, and labs have to build special footings to handle the load, between 1000 and 2000 kilograms. Eric Hand, Science | AAAS, "‘We need a people’s cryo-EM.’ Scientists hope to bring revolutionary microscope to the masses," 23 Jan. 2020 One common way to present the data is by weight: For every kilogram of beef or chicken or cheese or lettuce, how much greenhouse gas is emitted? Chase Purdy, Quartz, "Need an excuse to avoid broccoli? Point to carbon emissions," 31 Dec. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'kilogram.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of kilogram

1797, in the meaning defined at sense 1

History and Etymology for kilogram

French kilogramme, from kilo- + gramme gram

Keep scrolling for more

Learn More about kilogram

Time Traveler for kilogram

Time Traveler

The first known use of kilogram was in 1797

See more words from the same year

Statistics for kilogram

Last Updated

25 Mar 2020

Cite this Entry

“Kilogram.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/kilogram. Accessed 5 Apr. 2020.

Keep scrolling for more

More Definitions for kilogram

kilogram

noun
How to pronounce kilogram (audio) How to pronounce kilogram (audio)

English Language Learners Definition of kilogram

: a unit of weight equal to 1,000 grams

kilogram

noun
ki·​lo·​gram | \ ˈki-lə-ˌgram How to pronounce kilogram (audio) \

Kids Definition of kilogram

: a metric unit of weight equal to 1000 grams

kilogram

noun
ki·​lo·​gram
variants: or chiefly British kilogramme \ ˈkil-​ə-​ˌgram How to pronounce kilogramme (audio) , ˈkē-​lə-​ How to pronounce kilogramme (audio) \

Medical Definition of kilogram

1 : the base unit of mass in the International System of Units that is equal to the mass of a prototype agreed upon by international convention and that is nearly equal to the mass of 1000 cubic centimeters of water at the temperature of its maximum density
2 : a unit of force equal to the weight of a kilogram mass under a gravitational attraction equal to that of the earth

Keep scrolling for more

More from Merriam-Webster on kilogram

Rhyming Dictionary: Words that rhyme with kilogram

Spanish Central: Translation of kilogram

Nglish: Translation of kilogram for Spanish Speakers

Britannica English: Translation of kilogram for Arabic Speakers

Britannica.com: Encyclopedia article about kilogram

Comments on kilogram

What made you want to look up kilogram? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

Name that Thing: Flower Edition

Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!