A type of tetrapylon in which the central crossing is not roofed, and the four corner-markers exist as four separate structures, not connected overhead.

tetrakis hexahedronnoun

A Catalan solid that has 24 congruent triangular faces and 36 edges and can be imagined as a cube with a square pyramid on each face.

tetrakis legomenonnoun

A word occurring only four times in a given corpus.

tetrakis-prefix

Synonym of tetra- used for multiplication with a second numerical prefix.

tetrakishexahedronnoun

A tetrahexahedron.

tetrakisphosphatenoun

Any compound containing four simple phosphate groups

tetralateraladj

Quadrilateral.

tetralayernoun

A structure composed of four layers

tetraleadnoun

Four atoms of lead in a chemical compound.

tetralemmanoun

A figure in Ancient Greek and Eastern logic with four possibilities.

tetralinnoun

The bicyclic hydrocarbon 1,2,3,4-tetrahydronaphthalene; it is used as an industrial solvent.

tetralingualadj

Able to read or speak four languages.

tetralinoleoylnoun

Four linoleoyl groups in a compound

tetralithiumnoun

Four lithium ions in a compound

tetralobedadj

Having four lobes

tetraloguenoun

A discourse or colloquy involving four individuals.

tetralogynoun

A set of four works of art that are connected, and that can be seen either as a single work or as four individual works. They are commonly found in literature, film, or video games.

tetralogy of Fallotnoun

A congenital heart defect, characterised by the four findings of ventricular septal defect, pulmonary stenosis, right ventricular hypertrophy and an overriding aorta.

tetraloopnoun

A four-base hairpin loop motif in RNA secondary structure that caps many double helices

tetralophodontadj

Having four ridges or crests to the teeth

tetraluminiumnoun

Alternative form of tetraaluminium.

tetraluminonoun

Four atoms of aluminium in a chemical compound.

tetramagicadj

Of a magic cube: remaining magic even if all its numbers are replaced by their kth power for 1 ≤ k ≤ 4.

tetramagnesiumnoun

Four magnesium atoms in a molecule.

tetramanganesenoun

Four atoms of manganese in a chemical compound.

tetramannosenoun

A tetramer of mannose

tetramannosidenoun

A tetrasaccharide composed of four mannose units

tetramatenoun

Any salt or ester of tetramic acid.

tetramernoun

An oligomer having four subunits.

tetramercurynoun

Four atoms of mercury in a chemical compound.

tetramericadj

Of or pertaining to a tetramer.

tetramerisationnoun

Alternative form of tetramerization.

tetrameriseverb

Alternative form of tetramerize.

Spelling & Dictionary Insight

The English alphabetical index for the letter T contains 27,828 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 557 pages, and you are currently viewing page 156. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.

On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.

For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "T" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.