triamtereneA potassium-sparing diuretic used in combination with thiazide diuretics for the treatment of hypertension and edema.
triamylstibineA chemical compound belonging to the class of organoantimony compounds, which are molecules containing a bond between carbon and antimony.
triangulaneAny of a class of hydrocarbons consisting of linear, branched and cyclic aggregates of spiro-linked cyclopropane units; they are named n-triangulanes depending on number of cyclopropane rings
triangulationA technique in which distances and directions are estimated from an accurately measured baseline and the principles of trigonometry; (countable) an instance of the use of this technique.
trianguleneA flat hydrocarbon graphene fragment, C₂₂H₁₂, composed of six fused benzene rings in a triangular configuration; being a radical having two unpaired electrons.
trianguleniumA carbenium ion derived from a triangulene
TriangulidA meteor of a meteor shower appearing to originate from the constellation of Triangulum.
TriangulumAn autumn constellation of the northern sky whose brightest three stars form a small triangle. It lies near Perseus, between Aries and Andromeda.
TriassicOf or from the geologic strata above the Permian and below the Jurassic; of or belonging to the period 250 to 200 million years ago when these strata were laid down.
triathleteAn athlete who competes in the triathlon.
triathlonAn athletics event in which contestants compete in swimming, cycling and running in turn.
triazabicycloused attributively to describe a compound having three nitrogen atoms in two rings
triazacyclononaneA saturated heterocycle that has six carbon atoms and three nitrogen atoms, but especially 1,4,7-triazacyclononane
triazamacrocycleAny macrocycle that contains three nitrogen atoms.
triazanaphthaleneAny of several isomeric, bicyclic aromatic heterocycles derived from naphthalene by replacing three carbon atoms (or CH residues) with nitrogen atoms
triazaneThe nitrogen compound NH₂NHNH₂, or any of its hydrocarbyl derivatives.
triazatrianguleniumA carbenium ion derived from triangulenium by replacing three >CH₂ groups by >N-R
triazavirinThe broad-spectrum antiviral drug 2-methylsulfanyl-6-nitro[1,2,4]triazolo[5,1-c][1,2,4]triazin-7(4H)-one
triazoleEither of two isomeric heterocyclic compounds having a five-membered ring with three nitrogen atoms and two double bonds in the ring; any organic derivative of these compounds.
triazolideAny compound having a triazole as a substituent
triazolineAn unsaturated five-membered heterocycle having two carbon atoms, three nitrogen atoms and one double bond (between two of the nitrogen atoms); any derivative of this compound
triazolinoneA five-membered unsaturated heterocyclic ketone having three nitrogen atoms, one double bond and a carbonyl group
triazoliumA cation produced by protonation of a triazole