(a.) First in order; primary; original; of earliest origin; as, primordial condition.
(a.) Of or pertaining to the lowest beds of the Silurian age, corresponding to the Acadian and Potsdam periods in American geology. It is called also Cambrian, and by many geologists is separated from the Silurian.
(a.) Originally or earliest formed in the growth of an individual or organ; as, a primordial leaf; a primordial cell.
(n.) A first principle or element.
Example Sentences:
(1) In contrast, in primordial follicles, FSH was restricted to the germ cell but was present in both the oocyte cytoplasm and germinal vesicle.
(2) Renal arteriography is therefore alone capable of answering two primordial questions: "Must surgery be undertaken and when operating, what surgical tactics to adopt".
(3) This primordial role explains the wide variety of tissues, ranging from the central and peripheral nervous system to the vascular system, that are affected by FGF during the late embryonic, neonatal, and adult phases of development.
(4) Indirect immunofluorescence studies with four monoclonal antibodies raised against carp spermatozoa revealed that monoclonal antibody WCS 29 stained the outer membranes of primordial germ cells in larvae from 3 days after fertilization.
(5) After the treatment in toto of the embryos from various species of Anura by cAMP, the number of primordial germ cells (PGC) in genital ridges is strongly reduced; the most part of the PGC are found in the endoderm.
(6) Mouse lymphocytes and STO fibroblasts were negative, whereas F9 teratocarcinoma cells, intestinal epithelial cells, and rat fetal primordial germ cells were all found to be highly positive for APase activity, in agreement with published results on APase localization in these cells.
(7) This sequence of events suggests that receptor formation may be induced by innervation of primordial cells within the epidermis.
(8) Laparoscopic directed ovarian biopsies show primordial follicles in one and a corpus luteum in the other.
(9) Plastic responses in leaf form resulting from ontogenetic or external influences are initiated very early in primordial development and are brought about by effects on the rate and direction of cell division and expansion in different regions of the primordium.
(10) The primordial ratio was supposed to shift to the modern one guided by the action of primitive nucleotides.
(11) Evidence suggests that cAMP production is not a primordial step in the response to androgen since dibutyryl cAMP did not mimick the androgenic effect, theophylline did not potentiate the response and alpha,beta-methylene ATP, which competitively inhibits adenyl cyclase, failed to alter the androgenic effect.
(12) In the ooplasm the transosome takes part in the development of primordial yolk granules.
(13) Moreau de Tours's classical studies about haschisch had pointed out to a rich symptomatology: visual and auditive hallucinations preceded by the "primordial effect": "the dissociation of ideas".
(14) The resulting space is not homologous with the primordial amniotic cavity; instead, it is a transitory tropho-epiblastic cavity.
(15) In embryos with 6.5-6.7 mm NRL, a part of the primordial proper esophagus extended to the dorsal side of the primordial stomach.
(16) Besides this areas of the primordial germinogen cell generation are found among the cells lining the system of labyrinths and channels of the yolk sac tumour.
(17) It is concluded that exposure of B6 mice to a single dose of MC results in atresia of oocytes in primordial and small primary follicles.
(18) Primordial germ cells (PGCs), which formed in 78% of cases when the presumptive ventral half to the embryo was cultured, occurred in only 48% of cases when the two ventral vegetal blastomeres were cultured alone.
(19) Sympathetic neurotransmitters have been shown to be present in the ovary of the rat during early postnatal development and to affect steroidogenesis before the ovary becomes responsive to gonadotropins, and before the first primordial follicles are formed.
(20) Gonadal biopsy was done on the patients, which disclosed no evidence of primordial follicles in one and severe reduction in the other.
Pristine
Definition:
(a.) Belonging to the earliest period or state; original; primitive; primeval; as, the pristine state of innocence; the pristine manners of a people; pristine vigor.
Example Sentences:
(1) He knew that the find presented the country with perhaps its last chance to develop in the traditional way, but he also knew it would push the oil frontier deeper into the Amazon, release 400m tonnes of climate-changing gases and make the destruction of a vast and pristine area inevitable.
(2) A British oil firm will tomorrow announce that it has struck oil off Greenland, a find that could trigger a rush to exploit oil reserves in the pristine waters of the Arctic.
(3) Djami Marika stood at the edge of a pristine Arnhem Land beach and shook his head at the boat moored across the channel.
(4) The one-cell mouse embryo bioassay was utilized to test the embryotoxicity of three brands of powerless surgical gloves; Pristine, Ansell, and BioGel.
(5) Environment groups are opposed to the drilling and claim it puts a pristine area of biodiversity at risk.
(6) The pitch on which Iceland train, favoured in the past by Monaco and Nantes for summer getaways, sits beneath Mont Veyrier and is cocooned a few hundred metres from pristine lakeside beaches and disrobed holidaymakers.
(7) Colbeck told the Australian the protected listing was a “sham” because it locked up areas of plantation timber, as well as pristine old-growth forest.
(8) Harboured by the remote and pristine forests in the north of the Democratic Republic of Congo (DRC) and on the border of the Central African Republic , the chimps were completely unknown until recently – apart from the local legends of giant apes that ate lions and howled at the moon.
(9) Mineralization half-lives for naphthalene in microcosms ranged from 2.4 weeks in sediment chronically exposed to petroleum hydrocarbons to 4.4 weeks in sediment from a pristine environment.
(10) Just 53 people live on the islands, many descendents of the sailors behind the famous mutiny on the Bounty in 1790, but it is the marine life that attracted National Geographic’s Pristine Seas expedition .
(11) But surely no machinist could bunk off their punishing workload to script these complaints in pristine English, stitch them in and whisk them past a pin-sharp inspector.
(12) This is what we imagined: the becalmed beauty of the Whitsunday Passage, that spectacular collection of islands protectively nestled inside the Great Barrier Reef, safe from prevailing winds; bright blue languid days gliding over turquoise waters, taking turns at the tiller in our togs; finding our own private cove as the sun goes down; diving into warm pristine waters; the tinkling of intimate laughter; the fizz of champagne and the sizzle of prawns on the barbie.
(13) I opened my eyes to see the pristine beach glistening in the clean dawn air.
(14) A nimal, vegetable and mineral, a pristine tropical coral reef is one of the natural wonders of the world.
(15) Maslin told the FA’s website: “We strive to deliver the best possible surface, so I’m slightly disappointed that the surface isn’t as good as it should be but I’m confident it will be back to its pristine state after a winter renovation.
(16) Today the archipelago’s sparsely populated islands remain pristinely beautiful while some of its underwater landscapes present scenes of utter devastation.
(17) The outsider might have thought that the US had preserved all its wildernesses in national parks long ago, but it was during the 1950s that concern about damming of the Colorado river highlighted the threat to many pristine and unprotected areas.
(18) The once pristine Boulevard Mobutu has lost its lustre.
(19) The residents of Sani Isla expressed relief that a confrontation with Petroamazonas did not take place on Tuesday as anticipated , but said the firm is still trying to secure exploration rights in their area of pristine rainforest.
(20) This time, it’s casual Chuka: skinny jeans with micro turn-ups, blue suede shoes, pristine white shirt, jacket.