chromosomal abnormality consisting of the absence of one chromosome from the normal diploid number
meteorological conditions
Noun
the prevailing environmental conditions as they influence the prediction of weather
murk
Noun
an atmosphere in which visibility is reduced because of a cloud of some substance
murk
Verb
make dark, dim, or gloomy
mammon
Noun
wealth regarded as an evil influence
milk intolerance
Noun
congenital disorder consisting of an inability to digest milk and milk products
myoglobinuria
Noun
the presence of myoglobin in the urine
mendicity
Noun
the state of being a beggar or mendicant
macrocephaly
Noun
an abnormally large head
megacephaly
Noun
an abnormally large head
megalocephaly
Noun
an abnormally large head
microbrachia
Noun
abnormally small arms
microcephaly
Noun
an abnormally small head and underdeveloped brain
microcephalus
Noun
an abnormally small head and underdeveloped brain
malathion poisoning
Noun
a toxic condition caused by inhaling or ingesting the insecticide Malathion
mercury poisoning
Noun
a toxic condition caused by ingesting or inhaling mercury
middle-ear deafness
Noun
hearing loss due to problems with the bones of the middle ear
micronutrient
Noun
a substance needed only in small amounts for normal body function (e.g., vitamins or minerals)
merchantability
Noun
the state of being fit for market
morphea
Noun
localized scleroderma
mutism
Noun
the condition of being unable or unwilling to speak
myopia
Noun
an eyesight abnormality resulting from the eye's faulty refractive ability, meaning that items in the distance are not seen easily
moral hazard
Noun
(economics) the lack of any incentive to guard against a risk when you are protected against it (as by insurance)
metamorphopsia
Noun
a defect of vision in which objects appear to be distorted
muscular tonus
Noun
normal tonicity of the muscles
muscle tone
Noun
normal tonicity of the muscles
myotonia
Noun
abnormally long muscular contractions
myotonia congenita
Noun
a mild, rare, congenital form of myotonia characterized by muscle stiffness
multivalence
Noun
(chemistry) the state of having a valence greater than two
multivalency
Noun
(chemistry) the state of having a valence greater than two
mosaicism
Noun
the condition in which an organism has two or more cell populations that differ in genetic makeup
metroptosis
Noun
prolapse of the uterus
manganic acid
Noun
a dibasic acid (H2MnO4) found only in solution and in manganate salts
metaphosphoric acid
Noun
a glassy solid acid ([HPO3]n) often used as a dehydrating agent
methacrylic acid
Noun
an unsaturated acid (C4H6O2) used to make resins and plastics
mucic acid
Noun
a solid acid (C6H10O8) found in milk or sugar
molecule
Noun
(nontechnical usage) a tiny piece of anything
molecule
Noun
the simplest structural unit of an element or compound in chemistry or physics
mote
Noun
(nontechnical usage) a tiny piece of anything
metal
Adjective
containing or made of or resembling or characteristic of a metal
metal
Noun
a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten
metal
Noun
any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
metal
Verb
cover with metal
monobasic acid
Noun
an acid containing only one replaceable hydrogen atom per molecule
mechanical mixture
Noun
a mixture whose components can be separated by mechanical means
Mylar
Noun
a thin polyester film
magnesium
Noun
a light silver-white ductile bivalent metallic element
manganese
Noun
a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic
meitnerium
Noun
a radioactive transuranic element
mendelevium
Noun
a radioactive transuranic element synthesized by bombarding einsteinium with alpha particles (Md is the current symbol for mendelevium but Mv was formerly the symbol)