What's the difference between vallum and vellum?

Vallum


Definition:

  • (n.) A rampart; a wall, as in a fortification.

Example Sentences:

  • (1) The circumvallate and foliate papillae are characterized not only by their position, but also by presence of several taste buds which open through the external orifice of the gustatory canal into the cavity of the vallum, or furrow, which divides the two folds of the lingual mucosa.
  • (2) The main excretory duct, which opens at the bottom of the vallum, shows a stratified epithelium.
  • (3) In two species of the Sorex a papilla in the vallate papilla was surrounded by two separated trenches, but in the other species it was surrounded by only a continuous trench and a clear vallum.
  • (4) The latter opens in the vallum which surrounds the circumvallate papillae and in the groove of the foliate papillae.
  • (5) The perioplic segment extends along the internal surface of the claw fold (vallum).
  • (6) Some of them are located at the limit between glottis and supraglottis; therefore one may argue that the so-called "biological vallum", which hinders the downward propagation of supraglottic cancers is not only due to the interruption of lymph ways between vestibulum and vocal chords but also to the presence of this thick connective barrier.
  • (7) A group of diabetic patients was submitted to a capillaroscopic examination at the level of the peri-ungual vallum and to a fluoroangiographic examination of the retina, for the evaluation of possible correlations between vessel conditions in to various districts.

Vellum


Definition:

  • (n.) A fine kind of parchment, usually made from calfskin, and rendered clear and white, -- used as for writing upon, and for binding books.

Example Sentences:

  • (1) Of course it doesn't "die" with one Elizabeth R on the bottom of some vellum.
  • (2) The difficult question now is how to sort out these remaining issues without the crushing time pressure that leads to botched drafting which, in a royal charter world, become inscribed on vellum and extremely difficult to modify.
  • (3) The portrait drawing, in graphite on vellum, had been in a private collection for years, and was being auctioned as an "imaginary portrait" of Austen, with "Miss Jane Austin" written on the back.
  • (4) These are tough times requiring cuts all round, including economies in new ideas: new ideas tend to cost new money, or they are rarely worth the vellum they are written on.
  • (5) They included Sir Peter Tapsell, now father of the Commons, whose grandiloquent style of speech prompted Hoggart to suggest that monks must be writing down his every word on vellum.
  • (6) However, when her body is found, she is holding a piece of crumpled vellum on which are written the words: 'I bear witness that there is no God but Allah and I bear witness that Mohammed is His messenger.'
  • (7) Nor should the “in” lobby pretend this insignificant little list changes anything worth the vellum it’s written on .
  • (8) But he added that the pressure to get legislation to underpin a new regulatory regime through before the parliamentary session ends in May could lead to a "botched drafting" with a royal charter "inscribed on vellum and extremely difficult to modify".

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