{ or . [ After Dr. Rudolf Diesel, of Munich, the inventor. ] A type of internal-combustion engine in which the air drawn in by the suction stroke is so highly compressed that the heat generated ignites the fuel (usually a heavy oil), the fuel being automatically sprayed into the cylinder under pressure. The Diesel engine has a very high thermal efficiency. [ Webster 1913 Suppl. ]

n. plural of diesis.
Syn. -- double daggers, double obelisks. [ WordNet 1.5 ]

n. An engraver of dies for stamping coins, medals, etc. [ 1913 Webster ]

n. The process of engraving dies. [ 1913 Webster ]

‖ Day of wrath; -- the name and beginning of a famous mediæval Latin hymn on the Last Judgment. [ 1913 Webster ]

 The text of the Dies Irae follows:
 DIES IRAE attributed to Tomaso de Celano ========================================================= Latin English ========================================================= Dies irae, dies illa The day of wrath, that day solvet saeclum in favilla: which will reduce the world to ashes, teste David cum Sibylla. as foretold by David and the Sybil. Quantus tremor est futurus, What terror there will be, quando judex est venturus, when the Lord will come cuncta stricte discussurus! to rigorously judge all! Tuba mirum spargens sonum The trumpet, scattering a wondrous sound per sepulcra regionum, among the graves of all the lands, coget omnes ante thronum. will assemble all before the Throne. Mors stupebit et natura, Death and Nature will be astounded cum resurget creatura, when they see a creature rise again judicanti responsura. to answer to the Judge. Liber scriptus proferetur, The book will be brought forth in quo totum continetur, in which all deeds are noted, unde mundus judicetur. for which humanity will answer. Judex ergo cum sedebit, When the judge will be seated, quidquid latet apparebit, all that is hidden will appear, nil inultum remanebit. and nothing will go unpunished. Quid sum miser tunc dicturus? Alas, what will I then say? Quem patronum rogaturus, To what advocate shall I appeal, cum vix justus sit securus? when even the just tremble? Rex tremendae majestatis, O king of redoutable majesty, qui salvandos salvas gratis, who freely saves the elect, salva me fons pietatis. save me, o fount of piety! Recordare Jesu pie, Remember, good Jesus, quod sum causa tuae viae, that I am the cause of your journey, ne me perdas illa die. do not lose me on that day. Quaerens me sedisti lassus, You wearied yourself in finding me. redemisti crucem passus, You have redeemed me through the cross. tantus labor non sit cassus. Let not such great efforts be in vain. Juste judex ultionis, O judge of vengeance, justly donum fac remissionis make a gift of your forgiveness ante diem rationis. before the day of reckoning. Ingemisco tanquam reus, I lament like a guilty one. culpa rubet vultus meus, My faults cause me to blush, supplicanti parce, Deus. I beg you, spare me. Qui Mariam absolvisti, You who have absolved Mary et latronem exaudisti, and have heard the thief's prayer, mihi quoque spem dedisti. have also given me hope. Preces meae non sunt dignae: My prayers are not worthy, sed tu bonus fac benigne, but you, o Good One, please grant freely ne perenni cremer igne. that I do not burn in the eternal fire. Inter oves locum praesta, Give me a place among the sheep, et ab haedis me sequestra, separate me from the goats statuens in parte dextra. by placing me at your right. Confutatis maledictis, Having destroyed the accursed, flammis acribus addictis: condemned them to the fierce flames, voca me cum benedictis. Count me among the blessed. Oro Supplex Et Acclinis, I prostrate myself, supplicating, Cor Contritum Quasi Cinis, my heart in ashes, repentant; Gere Curam Mei Finis. take good care of my last moment! Lacrimosa dies illa, That tearful day, qua resurget ex favilla when shall rise again from the ashes judicandus homo reus. sinful man to be judged. Huic ergo parce, Deus: Therefore pardon him, o God. pie Jesu Domine, Holy Lord Jesus, dona eis requiem. give them rest. Amen. Amen.

‖n.; pl. Dieses [ NL., fr. Gr. &unr_;, fr. &unr_; to let go through, dissolve; dia` through + &unr_; to let go, send. ] 1. (Mus.) A small interval, less than any in actual practice, but used in the mathematical calculation of intervals. [ 1913 Webster ]

2. (Print.) The mark ‡; -- called also double dagger. It is used in printing to indicate a cross reference or footnote
Syn. -- double obelisk. [ 1913 Webster ]

‖ pl. Dies juridici [ L. ] (Law) A court day. [ 1913 Webster ]

‖ [ L. dies non juridicus. ] (Law) A day on which courts are not held, as Sunday or any legal holiday. [ 1913 Webster ]

n. A stock to hold the dies used for cutting screws. [ 1913 Webster ]

adj. in a period of sexual inactivity; -- of animals that have several estrous cycles in one breeding season.
Syn. -- dioestrous, dioestrual. [ WordNet 1.5 ]