Enter criteria and click Find Words
Only two words carry S second and M third, and both belong to the chemistry shelf.
OSMIC describes compounds of osmium, the densest naturally occurring metal. The element was named from the Greek for smell, after the sharp odour of its oxide.
OSMOL is a unit of osmotic concentration, and it comes from osmosis instead. The two words look like a matched pair and their roots have nothing in common.
O takes two of the two, which is both of them. No other letter will sit in front of an S and M at this length.
That leaves the fourth and last boxes doing all the work, and each takes a different letter in each word. The pattern is a straight choice between two spellings.
Relating to or containing osmium, usually in its higher oxidation state. Osmic acid is used as a stain in microscopy.
A measure of how many particles a solution contains, used in physiology to describe blood and urine concentration.
Neither is common, but OSMOL appears more often in medical writing than OSMIC does anywhere. If forced, start there.
S followed by M needs a single letter in front and two behind. English builds almost nothing that way, and what exists arrived through scientific coinage.
No. The count of repeats across this page is zero.