“SIMIOID” is a valid word. — 10 points Scrabble

misoa thick paste made from fermented soybeans and barley or rice malt; used in Japanese cooking to make soups or sauces
modsa youth subculture that began in London in the early 1960s; a working-class movement with highly stylized dress and short hair; listened to rhythm and blues music and travelled on motor scooters
modi
midithe southern part of France
dimsswitch (a car's headlights) from a higher to a lower beam
mids
doms
imid

dom
dimswitch (a car's headlights) from a higher to a lower beam
sodsurface layer of ground containing a mat of grass and grass roots
sim
midused in combination to denote the middle
dosthe federal department in the United States that sets and maintains foreign policies
ids
disgod of the underworld; counterpart of Greek Pluto
moda British teenager or young adult in the 1960s; noted for their clothes consciousness and opposition to the rockers
mis
mos
ods
isma belief (or system of beliefs) accepted as authoritative by some group or school
oms

ishave the quality of being; (copula, used with an adjective or a predicate noun)
doan uproarious party
sothe syllable naming the fifth (dominant) note of any musical scale in solmization
ida state in the Rocky Mountains
moan indefinitely short time
midestruction of heart tissue resulting from obstruction of the blood supply to the heart muscle
sia tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
om
oda doctor's degree in optometry
osa mouth or mouthlike opening

SIMIOID