| 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 |
| 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 |
explosive trace detection
ETD | a system for screening luggage in airports, an agent passes a swab around or inside luggage and then runs the swab through a machine that can detect trace amounts of explosives |
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 |
| trace | either of two lines that connect a horse's harness to a wagon or other vehicle or to a whiffletree |
| trace detector | a screening device for traces of explosives, used at airline terminals |
tracing
trace | a drawing created by superimposing a semitransparent sheet of paper on the original image and copying on it the lines of the original image |
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 |
engram
memory trace | a postulated biochemical change (presumably in neural tissue) that represents a memory |
dark
darkness | an unenlightened state, he was in the dark concerning their intentions, his lectures dispelled the darkness |
| trace program | a utility program that exhibits the sequence and results of executing the instructions in another program |
trace
vestige
tincture
shadow | an indication that something has been present, there wasn't a trace of evidence for the claim, a tincture of condescension |
| trace | a visible mark (as a footprint) left by the passage of person or animal or vehicle |
| dark comedy | a comedy characterized by grim or satiric humor, a comedy having gloomy or disturbing elements |
| touch trace ghost | a suggestion of some quality, there was a touch of sarcasm in his tone, he detected a ghost of a smile on her face |
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 |
trace
hint suggestion | a just detectable amount, he speaks French with a trace of an accent |
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 |
| trace element | an element that occurs at very small quantities in the body but is nonetheless important for many biological processes |
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 |
decipher
trace | read with difficulty, Can you decipher this letter?, The archeologist traced the hieroglyphs |
trace
follow | follow, discover, or ascertain the course of development of something, We must follow closely the economic development is Cuba , trace the student's progress |
trace
draw line describe
delineate | make a mark or lines on a surface, draw a line, trace the outline of a figure in the sand |
| trace | copy by following the lines of the original drawing on a transparent sheet placed upon it, make a tracing of, trace a design, trace a pattern |
| trace | make one's course or travel along a path, travel or pass over, around, or along, The children traced along the edge of the dark forest, The women traced the pasture |
hound
hunt
trace | pursue or chase relentlessly, The hunters traced the deer into the woods, the detectives hounded the suspect until they found him |
| trace retrace | to go back over again, we retraced the route we took last summer, trace your path |
| trace | discover traces of, She traced the circumstances of her birth |
| dark | not giving performances, closed, the theater is dark on Mondays |
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 |