What's the difference between sac and sad?

Sac


Definition:

  • (n.) See Sacs.
  • (n.) The privilege formerly enjoyed by the lord of a manor, of holding courts, trying causes, and imposing fines.
  • (n.) See 2d Sack.
  • (n.) A cavity, bag, or receptacle, usually containing fluid, and either closed, or opening into another cavity to the exterior; a sack.

Example Sentences:

  • (1) Both apertures were repaired with great caution using individual sutures without resection of the hernial sac.
  • (2) Tracheal mucus transport rate (TMTR) and quantitative clearance of aerosolized Escherichia coli from the trachea, lung, and air sac were measured in healthy unanesthetized turkeys and in turkeys exposed by aerosol to a La Sota vaccine strain of Newcastle disease virus (NDV).
  • (3) The wall of the yolk sac thickens as a result of this infolding and the densely packed capillaries.
  • (4) After intravenous or dorsal lymph sac injections of 3H-22:6, most of the retinal label was seen in rod photoreceptor cells.
  • (5) The buccal glands of adults of the Southern Hemisphere lamprey Geotria australis consist of a pair of small, bean-shaped, hollow sacs, embedded within the basilaris muscle in the region below the eyes and to either side of the piston cartilage.
  • (6) Ultrastructural examination of noncartilaginous regions of the tumor demonstrated mesenchymal cells with features suggestive of cartilaginous differentiation, viz, scalloped cell membranes, sac-like distension of abundant rough endoplasmic reticulum, and a matrix containing fibrillary and finely granular material.
  • (7) On the other hand, esophageal emptying of solid isotopic meals may show the persistence of food in the diverticular sac long time after the meal.
  • (8) Both genes are expressed in the fetal liver, gut, and visceral endoderm of the yolk sac and are repressed shortly after birth in the liver and gut.
  • (9) The in vitro absorption by rat jejunal and ileal gut sacs of soluble antigen-antibody complexes and of antigen alone was compared.
  • (10) In two almost identical experiments, all OTC treatment groups had significantly lower mean air sac lesion scores than the unmedicated challenged controls.
  • (11) After clusters of pigmented epithelial cells have rested immobile in the yolk sac of Blennius pholis for 2-4 days (Trinkaus, '88), their constituent cells transform into mesenchymal, dendritic melanocytes.
  • (12) The patient, a 28-year-old woman, in her ninth week of pregnancy, was operated on for stage Ia, mixed germ cell tumor (grade 3 immature teratoma + yolk sac tumor) of AFP decreased to the normal level.
  • (13) Using the experimental model of the everted sac prepared from rat jejuna, kinetic studies on [14C]oleic acid uptake from bile salt micelles were conducted in the presence and absence of phosphatidylcholine.
  • (14) Cadmium, anti-visceral yolk sac antibody (AVYS) and trypan blue all inhibited pinocytosis in a concentration-dependent fashion when added to the culture medium, although at low concentrations trypan blue was slightly stimulatory.
  • (15) In each rabbit, a single fetal sac was opened, the umbilical vessels were cannulated and the placenta was perfused in situ with buffered Krebs solution containing Dextran.
  • (16) Although small amounts of AFP are synthesized by sharks in the liver, the greatest site of synthesis is actually the stomach, with smaller amounts synthesized in the intestinal mucosa; no synthesis was observed in the shark yolk sac.
  • (17) A stem cell line has been obtained with cell culture, having a germ cell character and a yolk sac configuration.
  • (18) We postulate that the apposition of trophotaenial epithelium to the internal ovarian epithelium constitutes a placental association equivalent to a noninvasive, epithelioform of an inverted yolk sac placenta.
  • (19) In vivo recirculating perfusion (n = 5) and in vitro everted sac incubation (n = 8) were employed.
  • (20) In the second hypertrophied form [Type II], the endoplasmic reticulum is very prominent and occurs as a series of grossly dilated sacs of irregular shape.

Sad


Definition:

  • (supperl.) Sated; satisfied; weary; tired.
  • (supperl.) Heavy; weighty; ponderous; close; hard.
  • (supperl.) Dull; grave; dark; somber; -- said of colors.
  • (supperl.) Serious; grave; sober; steadfast; not light or frivolous.
  • (supperl.) Affected with grief or unhappiness; cast down with affliction; downcast; gloomy; mournful.
  • (supperl.) Afflictive; calamitous; causing sorrow; as, a sad accident; a sad misfortune.
  • (supperl.) Hence, bad; naughty; troublesome; wicked.
  • (v. t.) To make sorrowful; to sadden.

Example Sentences:

  • (1) She loved us and we loved her.” “We would have loved to have had a little grandchild from her,” she says sadly.
  • (2) Wimbledon said the world No1 Williams had been suffering from a viral illness and it was a sad and bizarre end to the American’s tournament, not to mention a worrying sight, seeing her hardly able to play.
  • (3) Sadly, the bullet will not only kill off Greece’s future in Europe.
  • (4) Calum MacLean, Grangemouth Petrochemicals chairman, says, “This is a hugely sad day for everyone at Grangemouth.
  • (5) Sadly, the Jewish fanatic who assassinated Rabin in 1995 achieved his broader aim of derailing the peace train.
  • (6) It also devalues the courage of real whistleblowers who have used proper channels to hold our government accountable.” McCain added: “It is a sad, yet perhaps fitting commentary on President Obama’s failed national security policies that he would commute the sentence of an individual that endangered the lives of American troops, diplomats, and intelligence sources by leaking hundreds of thousands of sensitive government documents to WikiLeaks, a virulently anti-American organisation that was a tool of Russia’s recent interference in our elections.” WikiLeaks last year published emails hacked from the accounts of the Democratic National Committee and John Podesta, chairman of Hillary Clinton’s election campaign.
  • (7) I watched as she made the briefest eye contact with me on their way back, the flicker of hurt and sadness in her eyes reflecting mine, before the shutters came down.
  • (8) Only at 3 days did total plasma volume of SAD rats show a modest reduction of about 16% (P less than 0.05 vs. sham-operated plus unoperated controls).
  • (9) These sad numbers show that more Washington spending, threats of higher taxes on small businesses, and excessive government regulations don't create a healthy environment for job growth," Boehner said.
  • (10) Thirty-two nursing students were shown silent films in which 10 normal and 10 schizophrenic women described a happy, sad, and an angry personal experience.
  • (11) World Wildlife Fund Great Barrier Reef campaigner Richard Leck said it was a sad day for the reef and anyone who cared about its future.
  • (12) It is so sad, we don’t let her go out even if the weather is nice,” he says.
  • (13) During interviews, married couples experiencing infertility reported emotional reactions such as sadness, depression, anger, confusion, desperation, hurt, embarrassment, and humiliation.
  • (14) Half of the rats in each group had SAD surgery 1 week prior to study.
  • (15) There’s an overwhelming sadness among kids like that who have been kept there for a very long time.
  • (16) It is sadly slightly the territory we have inherited,” he said.
  • (17) In a statement the family said they were left "extremely sad and disappointed" by the verdicts: "We appreciate the work and effort over the years since events on Broadwater Farm that night in trying to bring people to justice.
  • (18) Moreover, no differences were found in abnormal lung function patients with and those without SAD in demographic, clinical, roentgenologic, and serologic features and results of pulmonary function tests.
  • (19) It is sad that the BBC chose to give Nick Griffin a platform.
  • (20) The only thing I'd say is that I know, from people who've told me firsthand, that sadly mixed marriages can be a bit conflicted on everyday issues.

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