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单词 gram
释义

gram1 or gramme /gram/

noun

A unit of mass in the metric system, formerly that of a cubic centimetre of water at 4ºC, now a thousandth part of the International Prototype Kilogram (see kilogram under kilo-)

ORIGIN: Fr gramme, from L gramma, from Gr gramma a letter, a small weight

gram-atˈom or gram-atomic weight, gram-molˈecule or gram-molecular weight noun

The quantity of an element, or a compound, whose mass in grams is equal to its atomic weight and molecular weight respectively (a now discarded concept; see mole4)

gram-equivˈalent or gram-equivalent weight noun

The quantity of a substance whose mass in grams is equal to its equivalent weight

gram2 /gram/

noun
  1. The chickpea
  2. A pulse generally
ORIGIN: Port grão (sometimes gram), from L grānum a grain

gram flour noun

Flour made from ground chickpeas

black gram see urd

gram3 /gram/ or grame /grām/ (obsolete)

noun
  1. Anger
  2. Grief, trouble
ORIGIN: OE grama, anger

gram4 /gräm/

noun

An Indian village

ORIGIN: Hindi

-gram /-gram/

combining form
  1. Denoting: something written or drawn to form a record
  2. A greetings message delivered by a messenger in a particular costume and in an appropriately absurd, amusing or humorous manner (eg gorillagram, kissogram, stripogram, Tarzanogram) to surprise and embarrass the recipient on a special occasion
ORIGIN: Gr gramma letter; later use follows ‘singing telegram

gramicidin /gram-i-sīˈdin/

noun

An antibiotic obtained from certain bacteria, used against Gram-positive bacteria (also gramicidin D)

ORIGIN: HCJ Gram (1853–1938), Danish bacteriologist who devised the method, and L caedere to kill

Gram-negˈative (also gram-) adjective

Losing a stain of methyl violet and iodine on treatment with alcohol

Gram-posˈitive (also gram-) adjective

Retaining the stain

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更新时间:2024/12/23 5:06:17