morning sickness
— Noun
– English
～ nausea early in the day; a characteristic symptom in the early months of pregnancy
milk sickness
— Noun
– English
～ caused by consuming milk from cattle suffering from trembles
milk sickness
— Noun
– English
～ disease of livestock and especially cattle poisoned by eating certain kinds of snakeroot
minus sign
— Noun
– English
～ a sign indicating the operation of subtraction
mild silver protein
— Noun
– English
～ antiseptic consisting of a compound of protein and silver (trade name Argyrol)
Marvin Neil Simon
— Noun
– English
～ United States playwright noted for light comedies (born in 1927)
Mrs. Simpson
— Noun
– English
～ United States divorcee whose marriage to Edward VIII created a constitutional crisis leading to his abdication
mortal sin
— Noun
– English
～ an unpardonable sin entailing a total loss of grace; "theologians list seven mortal sins"
Mount Sinai
— Noun
– English
～ a mountain peak in the southern Sinai Peninsula (7,500 feet high); it is believed to be the peak on which Moses received the Ten Commandments
Meryta sinclairii
— Noun
– English
～ small roundheaded New Zealand tree having large resinous leaves and panicles of green-white flowers
maxillary sinus
— Noun
– English
～ one of a pair of sinuses forming a cavity in the maxilla
Myxinikela siroka
— Noun
– English
～ fossil hagfish of the Pennsylvanian period (c. 300 million years ago) that resembled modern hagfishes
mid-sixties
— Noun
– English
～ the time of life between 60 and 70
mountain skink
— Noun
– English
～ frequents oak and pine habitats in rocky mountainous areas of United States southwest and Mexico
mule skinner
— Noun
– English
～ a worker who drives mules
Marya Sklodowska
— Noun
– English
～ French chemist (born in Poland) who won two Nobel prizes; one (with her husband and Henri Becquerel) for research on radioactivity and another for her discovery of radium and polonium (1867-1934)
mad-dog skullcap
— Noun
– English
～ an American mint that yields a resinous exudate used especially formerly as an antispasmodic
mackerel sky
— Noun
– English
～ a sky filled with rows of cirrocumulus or small altocumulus clouds
microscope slide
— Noun
– English
～ a small flat rectangular piece of glass on which specimens can be mounted for microscopic study
mountain lady's slipper
— Noun
– English
～ leafy plant having a few stems in a clump with 1 white and dull purple flower in each upper leaf axil; Alaska to northern California and Wyoming