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 |
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 |
engram memory trace | a postulated biochemical change (presumably in neural tissue) that represents a memory |
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 |
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 |
fossil | the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil |
index fossil guide fossil | a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found |
dodo fogy fogey fossil | someone whose style is out of fashion |
trace hint suggestion | a just detectable amount, he speaks French with a trace of an accent |
fossil fuel | fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content |
copalite copaline fossil copal | partly mineralized copal dug from the ground |
petroleum crude oil crude rock oil fossil oil oil | a dark oil consisting mainly of hydrocarbons |
trace element | an element that occurs at very small quantities in the body but is nonetheless important for many biological processes |
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 |
fossil | characteristic of a fossil |