What's the difference between crown and diadem?

Crown


Definition:

  • () of Crow
  • () p. p. of Crow.
  • (n.) A wreath or garland, or any ornamental fillet encircling the head, especially as a reward of victory or mark of honorable distinction; hence, anything given on account of, or obtained by, faithful or successful effort; a reward.
  • (n.) A royal headdress or cap of sovereignty, worn by emperors, kings, princes, etc.
  • (n.) The person entitled to wear a regal or imperial crown; the sovereign; -- with the definite article.
  • (n.) Imperial or regal power or dominion; sovereignty.
  • (n.) Anything which imparts beauty, splendor, honor, dignity, or finish.
  • (n.) Highest state; acme; consummation; perfection.
  • (n.) The topmost part of anything; the summit.
  • (n.) The topmost part of the head (see Illust. of Bird.); that part of the head from which the hair descends toward the sides and back; also, the head or brain.
  • (n.) The part of a hat above the brim.
  • (n.) The part of a tooth which projects above the gum; also, the top or grinding surface of a tooth.
  • (n.) The vertex or top of an arch; -- applied generally to about one third of the curve, but in a pointed arch to the apex only.
  • (n.) Same as Corona.
  • (n.) That part of an anchor where the arms are joined to the shank.
  • (n.) The rounding, or rounded part, of the deck from a level line.
  • (n.) The bights formed by the several turns of a cable.
  • (n.) The upper range of facets in a rose diamond.
  • (n.) The dome of a furnace.
  • (n.) The area inclosed between two concentric perimeters.
  • (n.) A round spot shaved clean on the top of the head, as a mark of the clerical state; the tonsure.
  • (n.) A size of writing paper. See under Paper.
  • (n.) A coin stamped with the image of a crown; hence,a denomination of money; as, the English crown, a silver coin of the value of five shillings sterling, or a little more than $1.20; the Danish or Norwegian crown, a money of account, etc., worth nearly twenty-seven cents.
  • (n.) An ornaments or decoration representing a crown; as, the paper is stamped with a crown.
  • (n.) To cover, decorate, or invest with a crown; hence, to invest with royal dignity and power.
  • (n.) To bestow something upon as a mark of honor, dignity, or recompense; to adorn; to dignify.
  • (n.) To form the topmost or finishing part of; to complete; to consummate; to perfect.
  • (n.) To cause to round upward; to make anything higher at the middle than at the edges, as the face of a machine pulley.
  • (n.) To effect a lodgment upon, as upon the crest of the glacis, or the summit of the breach.

Example Sentences:

  • (1) A cytogenetic and anatomopathologic study of an embryo of 24 mm crown-rump length showing pure triploidy (69,XXY) is reported.
  • (2) Crown prince Sultan Bin Abdel Aziz said yesterday that the state had "spared no effort" to avoid such disasters but added that "it cannot stop what God has preordained.
  • (3) Extrapolation of gestational age from early crown-rump lengths (CRLs) has been difficult because previously established tables of CRL versus gestational age have contained few measurements at less than seven to eight weeks from the first day of the last menses.
  • (4) While it’s not unknown to see such self-balancing mini scooters on the pavement, under legal guidance reiterated on Monday by the Crown Prosecution Service all such “personal transporters”, including hoverboards and Segways , are banned from the footpath.
  • (5) Roberts can't really explain why Wu Lyf's lyrics are full of neo-biblical imagery – all blood and fire and crowns – nor why one of their main insignia is a cross, but he does admit that he got suspended from secondary school for putting a picture of Ho Chi Minh's face on Christ's body.
  • (6) The force is liaising with the Crown Prosecution Service over its inquiry.
  • (7) This is what we hope is the best golf tournament in the world, one of the greatest sporting events, and I think we will have a very impressive audience and have another great champion to crown this year."
  • (8) "But it is necessary to collect tax that is owed and it is necessary to reduce tax avoidance and the crown dependencies and the overseas territories need to play their part in that drive and they need to do more."
  • (9) His Highness General Sheikh Mohammed bin Zayed bin Sultan Al Nahyan, Crown Prince of Abu Dhabi The Crown Prince is a leading champion in the Middle East for improving child health.
  • (10) In this experiment, 64 crown preparations were made in four primates.
  • (11) Even the landscape is secretive: vast tracts of crown land and hidden valleys with nothing but a dead end road and lonely farmhouse, with a tractor and trailer pulled across the farmyard for protection.
  • (12) The involution of crown odontoblasts after primary dentinogenesis in teeth of limited eruption is discussed.
  • (13) This permitted employment of cast combined crowns with wide perigingival metal rims to support the clasp dentures to make them look better when supplying 73 patients with partial removable dentures.
  • (14) With equal cementing conditions and points of measurement for all crowns, the PFM crowns were found to be significantly superior to the other crown types.
  • (15) Just this week, we heard the outrage pouring from many Americans over the crowning of an Indian Miss USA .
  • (16) Below-zero temperatures crowned the top of the US from Idaho to Minnesota, where many roads still had an inch-thick plate of ice, polished smooth by traffic and impervious to ice-melting chemicals.
  • (17) May pointedly highlighted the latest reform effort, Vision 2030, promoted by the deputy crown prince, Mohammed bin Salman, the hawkish defence minister who oversees the Saudi campaign in Yemen.
  • (18) The maximum stresses and strains in porcelain for the crowns with a conventional coping thickness (0.3 mm) and a reduced coping thickness (0.1 mm) were not significantly different.
  • (19) However, the small residual pressure indicates that these internal back pressures appear to play a limited role in preventing a complete seating of a crown.
  • (20) The occurrence of marginal spaces between the resin facing and gold alloy framework in 176 crowns and bridge retainers was studied.

Diadem


Definition:

  • (n.) Originally, an ornamental head band or fillet, worn by Eastern monarchs as a badge of royalty; hence (later), also, a crown, in general.
  • (n.) Regal power; sovereignty; empire; -- considered as symbolized by the crown.
  • (n.) An arch rising from the rim of a crown (rarely also of a coronet), and uniting with others over its center.
  • (v. t.) To adorn with a diadem; to crown.

Example Sentences:

  • (1) With an armamentarium of clinical observation, dermatologists may suspect a hypomelanotic cutaneous diadem overlying a palpable dermal mass to be a visual vignette of a sarcoidal montage requiring diagnostic biopsy.
  • (2) Electron microscopy of ejaculated spermatozoa demonstrated the characteristic diadem pattern of craters in the equatorial region of the head.
  • (3) His Christmas radio broadcast in 1953, in which he quoted Macaulay's description of the Puritans ("Their palaces were houses not made with hands: their diadems crowns of glory which should never fade away") moved many listeners to tears.
  • (4) It was a strikingly odd object, 12g of gold so large that it would only fit on a gloved thumb, ornamented with a peculiar spiky head wearing a diadem, and a Latin inscription reading: "Senicianus live well in God".