A chamber for the reception and processing of sewage, divided into an upper chamber for sedimentation and a lower chamber in which the sludge is collected and digested.

imhofitenoun

A monoclinic-prismatic copper red mineral containing arsenic, copper, sulfur, and thallium.

Imhotepname

A deified Ancient Egyptian priest, the inventor of the pyramid.

imidazobenzodiazepinenoun

A polycyclic heterocycle whose structure is that of imidazol fused with benzodiazepine

imidazolatenoun

The anion formed from imidazole by loss of a proton; any salt containing this anion.

imidazolenoun

A heterocyclic organic compound containing two nitrogen atoms separated by a carbon atom in a five-membered ring, called 1,3-diazole in IUPAC nomenclature.

imidazolidinonenoun

Any heterocyclic ketone derived from an imidazolidine

imidazoliniumnoun

The cation formed by protonation of imidazoline.

imidazolinonenoun

A heterocyclic ketone derived from imidazoline

imidazoliumnoun

The cation formed by protonation of imidazole.

imidazolonenoun

A cyclic ketone derived from imidazole

imidazothiadiazolenoun

Any of a class of bicyclic heterocycles consisting of a diazole ring fused to one of thiadiazole

imidazothiadiazolesnoun

plural of imidazothiadiazole

imidenoun

a form of amide in which the nitrogen atom is attached to two carbonyl groups - R₁CONHCOR₂

imidicadj

Of or pertaining to imides or to imidic acids

imidoadj

Of or pertaining to an imide

imidoendopeptidasenoun

The enzyme tripeptide aminopeptidase.

Imigname

A surname from German.

iminenoun

Any of a class of organic nitrogen compounds having the general formula R₂C=NR; they are tautomeric with enamines.

iminiumnoun

A form of quaternary ammonium cation derived from an imine, R₂C=N⁺R₂.

iminonoun

The divalent radical =NH or =N-R.

iminoacetatenoun

Any salt or ester of iminoacetic acid.

iminoacetic acidnoun

The imino acid NH₂=CH₂COOH derived from acetic acid; any N-derivative of this compound

iminobiotinnoun

A derivative of biotin in which the guanidine carbonyl group (>C=O) is replaced by that of an imine (>C=NH)

iminocyclitolnoun

Any imino derivative of a cyclitol, some of whose derivatives are glycosidase inhibitors

iminoesternoun

Any ester of an imino acid

iminoethernoun

A chemical compound with is both an imine and an ether

iminoethylnoun

The univalent radical CH₃-C(=NH)-NH-

iminoglycinuricadj

Of or relating to iminoglycinuria.

iminohydrolasenoun

Any enzyme that catalyses the hydrolysis of an imine

iminolactonenoun

Any lactone that also contains an imino group

iminopeptidenoun

A dehydrogenated peptide in which the -CO-NH-CHR-CO₂- groups are replaced by -CO-N=CR-CO₂-

iminophosphinenoun

Any imino derivative of an organic phosphine

iminophosphoranenoun

Any imino derivative of a phosphorane, having general formula R₃P=N-R

iminoribitolnoun

An imino derivative of ribitol.

iminostilbenenoun

dibenzazepine

iminosugarnoun

Any analog of a sugar having a nitrogen atom at the position of the endocyclic oxygen atom

iminutivenoun

In Yiddish, a second-degree or more intensive diminutive form.

Spelling & Dictionary Insight

The English alphabetical index for the letter I contains 17,902 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 359 pages, and you are currently viewing page 49. 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 "I" 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.