• Webster's Revised Unabridged Dictionary
    • n Trional (Chem) A compound similar to sulphonal, used as a hypnotic in medicine.
    • ***
Century Dictionary and Cyclopedia
    • n trional It is diethyl-sulphone-methyl-ethyl-methane, CH3C(C2H5)(C2H5SO2)2, prepared in a similar manner to sulphonal, which it resembles in general properties. It crystallizes in lustrous plates melting at 76° C.
    • n trional A synthetic remedy used as a hypnotic.
    • ***


Webster's Revised Unabridged Dictionary
Pref. tri-, + sulphonal,; -- so called because it contains three ethyls.]


In literature:

Now I must really have a trional and get some rest.
"Halcyone" by Elinor Glyn
So presently I took trional, X grs., and dozed off till morning.
"Ten Thousand Miles with a Dog Sled" by Hudson Stuck
Sulphonal, trional, morphia, each tried in turn had no power to prevent him from dreaming.
"The Pools of Silence" by H. de Vere Stacpoole
He gave me trional and bromides and things, but I didn't seem able to assimilate them.
"The Man Who Couldn't Sleep" by Arthur Stringer