A painting or carving (especially an altarpiece) on two panels (usually hinged like a book).

Roget 86: list, catalog, catalogue, inventory; register etc. (record) 551.    account; bill, bill of costs; terrier; tally, listing, itemization; atlas; book, ledger; catalogue raisonne [Fr.]; tableau; invoice, bill of lading; prospectus; bill of fare, menu, carte [Fr.]; score, census, statistics, returns.    [list of topics in a document] contents, table of contents, outline; synopsis.    [written list used as an aid to memory] checklist.    table, chart, database; index, inverted file, word list, concordance.    dictionary, lexicon; vocabulary, glossary; thesaurus.    file, card index, card file, rolodex, address book.    Red book, Blue book, Domesday book; cadastre [Fr.]; directory, gazetter^†.    almanac; army list, clergy list, civil service list, navy list; Almanach de Gotha^†, cadaster; Lloyd's register, nautical almanac; who's who; Guiness's Book of World Records.    roll; check roll, checker roll, bead roll; muster roll, muster book; roster, panel, jury list; cartulary, diptych.    ... show more

Roget 551: trace, vestige, relic, remains; scar, cicatrix; footstep, footmark^†, footprint; pug; track mark, wake, trail, scent, piste^†.    monument, hatchment^†, slab, tablet, trophy, achievement; obelisk, pillar, column, monolith; memorial; memento etc. (memory) 505; testimonial, medal; commemoration etc. (celebration) 883.    record, note, minute; register, registry; roll etc. (list) 86; cartulary, diptych, Domesday book; catalogue raisonne [Fr.]; entry, memorandum, indorsement^†, inscription, copy, duplicate, docket; notch etc. (mark) 550; muniment^†, deed etc. (security) 771; document; deposition, proces verbal [Fr.]; affidavit; certificate etc. (evidence) 467.    notebook, memorandum book, memo book, pocketbook, commonplace book; portfolio; pigeonholes, excerpta^†, adversaria [Lat.], jottings, dottings^†.    gazette, gazetteer; newspaper, daily, magazine; almanac, almanack^†; calendar, ephemeris, diary, log, journal, daybook, ledger; cashbook^†, petty cashbook^†; professional journal, scientific literature, the literature, primary literature, secondary literature, article, review article.    archive, scroll, state paper, return, blue book; statistics etc. 86; compte rendu [Fr.]; Acts of, Transactions of, Proceedings of; Hansard's Debates; chronicle, annals, legend; history, biography etc. 594; Congressional Records.    registration; registry; enrollment, inrollment^†; tabulation; entry, booking; signature etc. (identification) 550; recorder etc. 553; journalism.    [analog recording media] recording, tape recording, videotape.    [digital recording media] compact disk; floppy disk, diskette; hard disk, Winchester disk; read-only memory, ROM; write once read mostly memory, WORM.    ... show more

Dutch: diptiek, tweeluik
Polish: dyptyk, dyptych