(a.) Of or pertaining to a period before written history begins; as, the prehistoric ages; prehistoric man.
Example Sentences:
(1) As any archaeologist will tell you, trying to understand what was going through the minds of the people who built these prehistoric monuments is a difficult task,” said Dr Marek Kukula, public astronomer at the Royal Observatory Greenwich.
(2) Trephination dates from prehistoric neolithic times (10,000-7000 B.C.)
(3) The breathtaking response of the geosphere as the great ice sheets crumbled might be considered as providing little more than an intriguing insight into the prehistoric workings of our world, were it not for the fact that our planet is once again in the throes an extraordinary climatic transformation – this time brought about by human activities.
(4) A treasure trove of more than £1.7bn-worth of old masters paintings, Greek, Roman and Egyptian antiquities, ancient weapons and prehistoric archaeological items were allowed to be sold overseas in the year to May 2013, according to official statistics issued by the government .
(5) These results suggest that Wilson bands are an indicator of the relative proportion of individuals who are high susceptibles in prehistoric populations.
(6) But nevertheless Theco is a fascinating creature because of both its place in the history of palaeontology and what it reveals about the south-west of England in prehistoric times.
(7) Comparisons of these ancient Sri Lankans with other prehistoric skeletal series from South Asia and elsewhere support the hypothesis that muscular-skeletal robusticity was a significant physical adaptation of earlier hunting-foraging populations.
(8) In case of the boy from Basta 1, this would the earliest evidence for the occurrence of this type of sexual delinquency in prehistoric times.
(9) The possibility of obtaining information on growth and development from prehistoric and early historic skeletal remains of children and juveniles is discussed.
(10) Abraded grooves have been observed on the anterior teeth of all the adults in a small population of prehistoric California Indians.
(11) According to Chinese classical literature on materia medica, the early uses were limited to the parts of the plant which met the most obvious needs of the prehistorical people in their struggle for existence-food and pain reliever.
(12) This reduction in size is one of the most important criteria for distinguishing prehistoric domestic livestock from their wild forms.
(13) Reasons for the existing lack of anthropological data on the subject are suggested, and the potential usefulness of representative surveys of large samples of prehistoric populations is stressed.
(14) Samples of innominates from three prehistoric Amerindian populations were used.
(15) Within North American prehistoric Indian populations, increasing brachycephalization and the possible development of a larger, broader face are two structural trends that can be identified.
(16) This result is different than that in some other prehistoric native American populations, where tibia CSMI increases with age in both sexes.
(17) Our objective in this study was to determine whether the prevalences of periodontal diseases, coronal caries, and root caries for prehistoric inhabitants vary between geochemical regions of the state of Missouri.
(18) It’s thoroughly appropriate that the last large-scale piece he completed was a community and children’s opera, The Hogboon, which will receive its first performance at the Barbican in London in June ; it’s based on an Orkney legend of supernatural beings who inhabit the prehistoric burial mounds that are found all over the islands, and who are entirely benign.
(19) The world's universities overflow with economic research proving beyond doubt that contemporary capitalist economies do not function as if their denizens were prehistoric humans trading nuts and berries at the edge of the forest – the great delusion of free market economics.
(20) The comparative analysis of parasitological findings illustrates the effects of changing subsistence strategies and varying life-style on prehistoric human parasitism.
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.