What's the difference between primitive and throwback?

Primitive


Definition:

  • (a.) Of or pertaining to the beginning or origin, or to early times; original; primordial; primeval; first; as, primitive innocence; the primitive church.
  • (a.) Of or pertaining to a former time; old-fashioned; characterized by simplicity; as, a primitive style of dress.
  • (a.) Original; primary; radical; not derived; as, primitive verb in grammar.
  • (n.) An original or primary word; a word not derived from another; -- opposed to derivative.

Example Sentences:

  • (1) Cloacal exstrophy, centered on the maldevelopment of the primitive streak mesoderm and cloacal membrane, results in bladder and intestinal exstrophy, omphalocele, gender confusion, and hindgut deformity.
  • (2) Evx-1 RNA is first detected shortly before the onset of gastrulation in a region of ectoderm containing cells that will soon be found in the primitive streak.
  • (3) As an extension of the previous study which indicated that mesoglea is a primitive basement membrane which has retained some characteristics of interstitial extracellular matrix, the present study was undertaken to analyze the role of mesoglea components during head regeneration in Hydra vulgaris.
  • (4) neuroblastomas, primitive neuroectodermal tumours (PNETs), rhabdomyosarcomas and malignant lymphomas.
  • (5) We concluded that the primitive eukaryote D.discoideum contains proteins which show functional and physical similarity with the alpha-subunits of vertebrate G-proteins.
  • (6) Mechanisms are suggested whereby rudimentary appetitive programs already encoded along facing dendrite membrane pairs within the specialized intrafascicular milieu, may trigger and control nipple search and suckling in the still blind and only primitively mobile neonate.
  • (7) Thus, the progeny of infected primitive multipotential cells are competent to express integrated proviruses.
  • (8) Multiple tuberculomas have simulated either an alcoolic encephalopathy in one case or a primitive cerebral tumour in another one.
  • (9) This increased cell flow down the early stages of the red cell pathway in CML suggests that heightened proliferation and differentiation of primitive hemopoietic cells may be a more general phenomenon than previously suspected in this disease.
  • (10) The Lerner & Lerner Scale for assessing primitive defenses is reviewed.
  • (11) Only tumors of astrocytic lineage like astrocytomas and glioblastomas, or tumors of mixed lineage as oligo-astrocytomas and multipotential primitive neuroectodermal tumors (PNET) expressed TNF-alpha-like immunoreactivity.
  • (12) This epithelial cell was tentatively identified as primitive extraembryonic endoderm by its ultrastructural appearance and its possession of cytokeratin intermediate filaments.
  • (13) The long-term culture corresponded to mouse MXT and MCF-7 cell lines whereas the primary culture corresponded to primitive breast cancers squashed onto histologic slides and maintained in cultures for between 12 and 48 h. Cell proliferation was evaluated by means of digital cell image analysis of Feulgen-stained nuclei.
  • (14) From these facts, it was concluded that the follicular, as well as acanthomatous, ameloblastoma is liable to undergo squamous differentiation, whereas the plexiform ameloblastoma remains in primitive stage of tumor differentiation.
  • (15) A cluster of spermatogonia may be derived from one primitive germ cell and it develops round a "Sertoli" cell.
  • (16) Shielded marrow self renewal capacity, a measurement reflecting primitive hematopoietic stem cell function, remained depressed and did not recover with time.
  • (17) In a 3-year-old child, a rare combination of a Dandy-Walker syndrome, a primitive trigeminal artery and a facial haemangioma was found.
  • (18) As the histochemical and ultrastructural findings are non specific, we believe, according to recent opinions, that this tumor could originate in a very primitive cell, able to differentiate to endocrine or exocrine elements, almost always incompletely.
  • (19) It is likely that the development of these malignancies is an expression of the multipotential nature of primitive germ cells.
  • (20) Morphology of the mature spermatozoon is modified from that of the classic primitive or ect-aquasperm type by having 1) the acrosome embedded in the nucleus (the only known example within the Mollusca), 2) a deep basal invagination in the nucleus containing proximal and distal centrioles and an enveloping matrix (derived from the rootlet), 3) laterally displaced periaxonemal mitochondria, and 4) a tail extending from the basal invagination of the nucleus.

Throwback


Definition:

Example Sentences:

  • (1) Sadly, the position is not chosen by popular vote and so the hosting duties went to another comedy throwback, Billy Crystal.
  • (2) No, this isn’t a throwback to the days of ‘bumfights’, where homeless people were filmed in dangerous and humiliating situations in the name of entertainment.
  • (3) People want us to cheer that black actors from The Butler and 12 Years a Slave are likely to be up for best actor and actress awards, yet it feels like a throwback, almost to the Gone with the Wind era.
  • (4) It was a throwback to the days when some Labour politicians would refuse, on principle, to talk to the “capitalist press”.
  • (5) At times it felt like a throwback to those warm-up matches in Miami, with a strange flow to the game and only brief moments when the crowd were fully absorbed.
  • (6) As hostess – a throwback to the days when flight attendants were described that way – he has appointed Amanda Miller, his gatekeeper in the reality show The Apprentice .
  • (7) He added that the Scottish church should abolish at least half of its eight diocese – a throwback to the size and power of the pre-reformation church.
  • (8) But one throwback remains: Shoppers Supermarket, tucked into Simpson Plaza, a 1963 shopping centre that is a five-minute walk from the Kings' former home.
  • (9) Nothing vibed until she met Ariel Rechtshaid in 2010, the musical alchemist behind Sky Ferreira , Solange and Haim's throwback pop collages, who was then a relative unknown.
  • (10) The war of words between the leader and the liberal opposition has been brewing since last week, when Kadyrov told a press conference that opposition politicians should be tried as “enemies of the people”, a throwback to Stalin-era language.
  • (11) Those "responsible" doctors would have their names put above the beds of patients, "a practice that began being discouraged a decade ago as a throwback to the past".
  • (12) With bands such as the Banshees and the Bunnymen opting for lavish orchestrations, Bush now seemed less like a throwback to pre-punk times and more like a sort of posh auntie to the goths.
  • (13) The Beijing and Seoul governments profess to view Abe's efforts to give Japan a bigger role on the world stage, forge security and defence ties with south-east Asian neighbours, and strengthen the US alliance as intrinsically threatening – a throwback to the bad old days of Japanese imperialism.
  • (14) In some ways he is ultra modern, but in a more fundamental sense he is almost a throwback: proud, conservative and cautious.
  • (15) Which brings us to the other big rumpus of the week, caused by the new old bore on the block, Nick Kyrgios – old because his antics are also a throwback to the 1970s, to the behaviour that posed a justified threat to institutional sleepiness.
  • (16) It's all over Blow's delicious throwback funk and the atmospheric thump of the Crazy In Love sequel, Drunk In Love, which features Jay Z seemingly ignoring the pair's current vegan diet as he raps about how he likes Beyoncé's breasts for breakfast.
  • (17) The business, which has a century-long presence in the regional hub of Shepparton, is something of a throwback – not only does it sell Australian-only fruit, its suppliers come from a narrow arc of intensively farmed land adjoining its cannery.
  • (18) Critics of zoos have been given a prime opportunity to rehearse their view that such institutions – a throwback to the 19th century, which had a taste for both scientific classification and freak shows – are outmoded.
  • (19) The first is that he’s an ideological throwback, clubbing together with his “union pals” to form a “Trotskyist tribute act” that will drive Labour off a cliff.
  • (20) The reef part of the name is a throwback to pioneer days, when settlers were forced to detour all the way around the Waterpocket Fold, which remains all but impassible even today.