different between colour vs achromic

English

Alternative forms

• color (American spelling)

Pronunciation

Homophone: culler

Noun

colour (countable and uncountable, plural colours) (British spelling, Canadian spelling)

1. Australia, Canada, Ireland, New Zealand, South Africa, and Britain standard spelling of color.

Adjective

colour (not comparable)

1. Australia, Canada, Ireland, New Zealand, South Africa, and Britain standard spelling of color.

Related terms

• colourimeter

Verb

colour (third-person singular simple present colours, present participle colouring, simple past and past participle coloured)

1. Australia, Canada, Ireland, New Zealand, South Africa, and Britain standard spelling of color.

Derived terms

Anagrams

• courol, ur-cool

Middle English

Alternative forms

• colur, color, culur, coler, coloure, kolour

Etymology

From Anglo-Norman colur, from Latin color.

Pronunciation

• IPA^(key): /ku?lu?r/, /?kulur/

Noun

colour (plural colours or coloures)

1. colour, hue, shade
2. pigment, dye (substance for colouring)
3. method (literary or rhetorical)
4. justification, explanation (often feigned)

Descendants

• English: color, colour
• Scots: colour

References

• “c?l?ur, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007, retrieved 2018-03-30.

See also

Old French

Noun

colour f (oblique plural colours, nominative singular colour, nominative plural colours)

1. (Anglo-Norman) Alternative form of color

English

Adjective

achromic (comparative more achromic, superlative most achromic)

1. (sciences) Uncoloured; not pigmented; lacking in colour.

Usage notes

The OED regards this word as obsolete, but modern usage shows a return of this synonym for achromatic in the fields of medicine and chemistry.