1

rainbow

noun rain·bow \ ˈrān-ˌbō \
|Updated on: 15 Jun 2018

Definition of rainbow

1 : an arc or circle that exhibits in concentric bands the colors of the spectrum and that is formed opposite the sun by the refraction and reflection of the sun's rays in raindrops, spray, or mist
2 a : a multicolored array
b : a wide assortment or range
  • a rainbow of flavors
3
[from the impossibility of reaching the rainbow, at whose foot a pot of gold is said to be buried]
: an illusory goal or hope

rainbowlike

play \ˈrān-ˌbō-ˌlīk\ adjective

Recent Examples of rainbow from the Web

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

First Known Use of rainbow

before 12th century

in the meaning defined at sense 1

See Words from the same year
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Other Climate/Meteorology Terms


2

rainbow

adjective

Definition of rainbow

1 : having many colors
2 : of, relating to, or being people of different races or cultural backgrounds
  • a rainbow coalition

Examples of rainbow in a Sentence

  1. the rainbow costumes worn by mummers at Mardi Gras

Recent Examples of rainbow from the Web

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

First Known Use of rainbow

1637

in the meaning defined at sense 1

See Words from the same year
NEW! Time Traveler

RAINBOW Defined for English Language Learners

rainbow

Definition of rainbow for English Language Learners

  • : a curved line of different colors that sometimes appears in the sky when the sun shines through rain


rainbow

Definition of rainbow for English Language Learners

  • : of, relating to, or including people of different races, cultures, etc.


RAINBOW Defined for Kids

rainbow

noun rain·bow \ ˈrān-ˌbō \

Definition of rainbow for Students

: an arc of colors that appears in the sky opposite the sun and is caused by the sun shining through rain, mist, or spray

Medical Dictionary

rainbow

noun rain·bow \ ˈrān-ˌbō \

medical Definition of rainbow

slang
: a combination of the sodium derivatives of amobarbital and secobarbital in a blue and red capsule


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soothing, mild, or foolish

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