a stable quark with an electric charge of -1/3 and a mass 607 times that of an electron
dregs
Noun
sediment that has settled at the bottom of a liquid
drey
Noun
the nest of a squirrel
drift ice
Noun
masses of ice floating in the open sea
drumlin
Noun
a mound of glacial drift
dune
Noun
a ridge of sand created by the wind
dale
Noun
an open river valley (in a hilly area)
dandruff
Noun
loose scales shed from the scalp
dandruff
Noun
a condition in which white scales of dead skin are shed by the scalp
defile
Noun
a narrow pass (especially one between mountains)
defile
Verb
spot, stain, or pollute
defile
Verb
make dirty or spotty, as by exposure to air
defile
Verb
place under suspicion or cast doubt upon
dell
Noun
a small wooded hollow
dingle
Noun
a small wooded hollow
delta ray
Noun
an electron ejected from matter by ionizing radiation
declivity
Noun
a downward slope or bend
decline
Noun
a downward slope or bend
decline
Noun
a gradual decrease
decline
Noun
change toward something smaller or lower
decline
Noun
a condition inferior to an earlier condition
decline
Verb
grow worse
decline
Verb
grow smaller
decline
Verb
show unwillingness towards
decline
Verb
inflect for number, gender, case, etc., 'in many languages, speakers decline nouns, pronouns, and adjectives'
decline
Verb
go down in value
decline
Verb
go down
decline
Verb
refuse to accept
downslope
Noun
a downward slope or bend
desideratum
Noun
something desired as a necessity
deuteron
Noun
the nucleus of deuterium
diapir
Noun
a domed rock formation where a core of rock has moved upward and pierced through the more brittle overlying strata
diffuse nebula
Noun
a cluster of stars within an intricate cloud of gas and dust
dipole molecule
Noun
a molecule that is a permanent dipole
direct transmission
Noun
a transmission mechanism in which the infectious agent is transferred directly into the body via touching or biting or kissing or sexual intercourse or by droplets entering the eye or nose or mouth
distributary
Noun
a branch of a river that flows away from the main stream and does not rejoin it
divot
Noun
a piece of turf dug out of a lawn or fairway (by an animals hooves or a golf club)
divot
Noun
in golf, the cavity left when a piece of turf is cut from the ground by the club head in making a stroke
dog shit
Noun
fecal droppings from a dog
dry land
Noun
the solid part of the earth's surface
daystar
Noun
a planet, usually Venus, seen just before sunrise in the eastern sky
dry wash
Noun
the dry bed of an intermittent stream (as at the bottom of a canyon)
doppelganger
Noun
a ghostly double of a living person that haunts its living counterpart
deity
Noun
any supernatural being worshipped as controlling some part of the world or some aspect of life or who is the personification of a force
daemon
Noun
a person who is part mortal and part god
daemon
Noun
an evil supernatural being
demigod
Noun
a person who is part mortal and part god
demigod
Noun
a person with great powers and abilities
demiurge
Noun
a subordinate deity, in some philosophies the creator of the universe