| dark adaptation | the process of adjusting the eyes to low levels of illumination, cones adapt first, rods continue to adapt for up to four hours |
dark ground illumination
dark field illumination | a form of microscopic examination of living material by scattered light, specimens appear luminous against a dark background |
dark-eyed junco
slateolored junco
Junco hyemalis | common North American junco having grey plumage and eyes with dark brown irises |
eastern red-backed salamander
Plethodon cinereus | common salamander of eastern North America |
western red-backed salamander
Plethodon vehiculum | salamander of the Pacific coast of North America |
red-backed sandpiper
dunlin
Erolia alpina | small common sandpiper that breeds in northern or Arctic regions and winters in southern United States or Mediterranean regions |
black-backed gull
great black-backed gull
cob Larus marinus | white gull having a black back and wings |
red-backed mouse
redback vole | any of several voles of mountainous regions of Eurasia and America |
grey lemming
gray lemming
red-backed lemming | Old World lemming |
| dark horse | a racehorse about which little is known |
dark lantern
bull's-eye | a lantern with a single opening and a sliding panel that can be closed to conceal the light |
sunglasses
dark glasses
shades | spectacles that are darkened or polarized to protect the eyes from the glare of the sun, he was wearing a pair of mirrored shades |
ultramicroscope
dark-field microscope | light microscope that uses scattered light to show particles too small to see with ordinary microscopes |
| dark red | a red color that reflects little light |
dark blue
navy
navy blue | a dark shade of blue |
dark
darkness | an unenlightened state, he was in the dark concerning their intentions, his lectures dispelled the darkness |
| dark comedy | a comedy characterized by grim or satiric humor, a comedy having gloomy or disturbing elements |
bittersweet chocolate
semi-sweet chocolate
dark chocolate | chocolate liquor with cocoa butter and small amounts of sugar and vanilla, lecithin is usually added |
| dark meat | the flesh of the legs of fowl used as food |
dark bread
whole wheat bread
whole meal bread
brown bread | bread made with whole wheat flour |
darkness
dark
shadow | an unilluminated area, he moved off into the darkness |
| dark horse | a political candidate who is not well known but could win unexpectedly |
| mortgage-backed security | a security created when a group of mortgages are gathered together and bonds are sold to other institutions or the public, investors receive a portion of the interest payments on the mortgages as well as the principal payments, usually guaranteed by the government |
dark
darkness | absence of light or illumination |
iniquity
wickedness
darkness dark | absence of moral or spiritual values, the powers of darkness |
| dark matter | (cosmology) a hypothetical form of matter that is believed to make uppercent of the universe, it is invisible (does not absorb or emit light) and does not collide with atomic particles but exerts gravitational force |
night
nighttime
dark | the time after sunset and before sunrise while it is dark outside |
Middle Ages
Dark Ages | the period of history between classical antiquity and the Italian Renaissance |
| dark | not giving performances, closed, the theater is dark on Mondays |
| backed | having a back or backing, usually of a specified type |
| high-backed | having a high back, a high-backed sofa |
| low-backed | having a low back |
razorback
razor-backed | having a sharp narrow back, a razor-backed horse, razorback hogs |
| spiny-backed | having the back covered with spines |
| stiff-backed | having a stiff back, the guards stood stiff-backed and unsmiling |
| straight-backed | having a straight back, a straight-backed wooden chair, a slim straight-backed dancer |
dark-haired
dark-coated | covered with dark hair |
colored
coloured
dark
dark-skinned
non-white | having skin rich in melanin pigments, National Association for the Advancement of Colored People, dark-skinned peoples |
| dark | brunet (used of hair or skin or eyes), dark eyes |
dark-haired
black-haired
brown-haired | having hair of a dark color, a dark-haired beauty |
dark-skinned
dusky
swart
swarthy | naturally having skin of a dark color, a dark-skinned beauty, gold earrings gleamed against her dusky cheeks, a smile on his swarthy face, `swart' is archaic |
| dark | devoid of or deficient in light or brightness, shadowed or black, sitting in a dark corner, a dark day, dark shadows, dark as the inside of a black cat |
black
pitch-black
pitch-dark | extremely dark, a black moonless night, through the pitch-black woods, it was pitch-dark in the cellar |
b blue
dark
dingy
disconsolate
dismal
gloomy
grim
sorry
drab
drear
dreary b | causing dejection, a blue day, the dark days of the war, a week of rainy depressing weather, a disconsolate winter landscape, the first dismal dispiriting days of November, a dark gloomy day, grim rainy weather |
brown
brownish
chocolate-brown
dark-brown | of a color similar to that of wood or earth |
| dark-blue | of a dark shade of blue |
green
greenish
light-green
dark-green | of the color between blue and yellow in the color spectrum, similar to the color of fresh grass, a green tree, green fields, green paint |
oxford-grey
oxford-gray
dark-grey
dark-gray | of a dark shade of grey |
dark-colored
dark-coloured
dusky-colored
dusky-coloured | having a dark color |
| dark | (used of color) having a dark hue, dark green, dark glasses, dark colors like wine red or navy blue |