achromatic
adjective
ach·ro·mat·ic ˌa-krə-ˈma-tik 
(ˌ)ā-
1
: refracting light without dispersing it into its constituent colors : giving images practically free from extraneous colors
an achromatic telescope
2
: not readily colored by the usual staining agents
3
: possessing no hue : being or involving black, gray, or white : neutral
achromatic visual sensations
4
: being without accidentals or modulation : diatonic
achromatically
ˌa-krə-ˈma-ti-k(ə-)lē
adverb achromatism
(ˌ)ā-ˈkrō-mə-ˌti-zəm
noun a-
achromatize
(ˌ)ā-ˈkrō-mə-ˌtīz
transitive verb a-
Word History
Etymology
a- entry 2 + Greek chrōmat-, chrôma "color" + -ic entry 1 (or borrowed directly from Greek chrōmatikós chromatic entry 1, formed with the same elements)
First Known Use
1754, in the meaning defined at sense 1
Phrases Containing achromatic
Medical Definition
achromatic
adjective
ach·ro·mat·ic ˌak-rə-ˈmat-ik
1
: refracting light without dispersing it into its constituent colors : giving images practically free from extraneous colors
an achromatic telescope
2
: not readily colored by the usual staining agents
3
: possessing or involving no hue : being or involving only black, gray, or white
achromatic visual sensations
achromatic light stimuli
achromatic
adjective
as in neutral
Synonyms & Similar Words
Relevance
- neutral
- monochromatic
- monochrome
- monochromic
- self-colored
- self
- solid
Antonyms & Near Antonyms
- chromatic
- rainbow
- colorful
- polychromatic
- multicolored
- varicolored
- varied
- variegated
- kaleidoscopic
- shaded
- polychrome
- dapple
- dappled
- motley
- marbled
- striated
- mottled
- striped
- piebald
- barred
- pied
- streaked
- pinto
- brindle
- banded
- checkered
- dotted
- brindled
- speckled
- patterned
- dichromatic
- trichromatic
- plaid
- parti-colored
- skewbald
- specked
- flecked
- bicolored
- tricolored
- parti-color
- tricolor
- spotted
- bichrome
- bicolor
- two-tone
- radial
- radial arm
- radial bearing
- radial brick
- radial canal
- radial cleavage
- radial drill
- radial engine
- radial gate
- radial head
- radial ker
- radial keratotomy
- radial motion
- radial quantum number
- radial saw
- radial sector
- radial shield
- radial symmetry
- radial velocity
- radial-flow
- radiale
- radialer
- radiales
- radialest
- radialia