“ISOZYME” is a valid word. — 21 points Scrabble

somequantifier; used with either mass nouns or plural count nouns to indicate an unspecified number or quantity
sizethe physical magnitude of something (how big it is)
semione of the two competitions in the next to the last round of an elimination tournament
misoa thick paste made from fermented soybeans and barley or rice malt; used in Japanese cooking to make soups or sauces
oyez
mise
oyes
zyme
sizy

yesan affirmative
soya source of oil; used for forage and soil improvement and as food
sim
ems
mis
sei
yom
mos
isma belief (or system of beliefs) accepted as authoritative by some group or school
ose
oms
oes

ishave the quality of being; (copula, used with an adjective or a predicate noun)
mea state in New England
my
sothe syllable naming the fifth (dominant) note of any musical scale in solmization
ema quad with a square body
yo
ye
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
esa radioactive transuranic element produced by bombarding plutonium with neutrons
oy
om
osa mouth or mouthlike opening
oe

ISOZYME