primitive


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primitive

 [prim´ĭ-tiv]
first in point of time; existing in a simple or early form that shows little complexity.

prim·i·tive

(prim'i-tiv),
Obsolete usage in embryology, replace by primordial.
[L. primitivus, fr. primus, first]

primitive

/prim·i·tive/ (prim´ĭ-tiv) first in point of time; existing in a simple or early form that shows little complexity.

primitive

[prim′itiv]
Etymology: L, primivus
1 undeveloped; undifferentiated; rudimentary; showing little or no evolution.
2 embryonic; formed early in the course of development; existing in an early or simple form. Compare definitive.

primitive

adjective Embrology Undifferentiated; undeveloped; before development of 1º germ layers–ectoderm, endoderm, mesoderm Psychiatry Pertaining to the early development of the personality

pri·mor·di·al

(prī-mōr'dē-ăl)
1. Relating to a primordium.
2. Relating to a structure in its first or earliest stage of development.
Synonym(s): primal (2) , primitive.

primitive

of ancient origin but present in modern organisms in an unmodified and unspecialized form.

primitive

first in point of time; existing in a simple or early form; showing little evolution.

primitive groove
longitudinal furrow in the primitive streak of the embryo.
primitive knot
primitive node
enlarged cranial end of the primitive streak.
primitive streak
the thickened median area of the epiblast which sets out the future longitudinal axis of the early embryo.
References in periodicals archive ?
Note that a perimeter alone is insufficient to check the correctness of a primitive because multiple primitives can have the same perimeter.
The fish, named 'Protoanguilla palau', exhibits many primitive anatomical features unknown in the other 19 families and more than 800 species of living eels, resulting in its classification as a new species belonging to a new genus and family.
When there is no connection between the elements, the set of isolated elements is called the primitive system.
Designing & Hooking Primitive Rugs is a solid, all-around primer to rug hooking in primitive (often pictorial) styles, including step-by-step walkthroughs for basic rug hooking, finishing, and dyeing.
The independent MF capability factor or value unit of PMF value chain is defined as MF primitive (Hou and Xu, 2008a).
The purpose of this step is to eliminate any distortion that might occur during the drawing process and to ease the primitive identification process and guarantee accurate identification.
LEADING the championship for much of the season were the unfancied Shetland sheep of John and Gerwyn Jones, who eventually claimed the rare and primitive breeds title.
This tradition finds ambiguous expression in Levi-Strauss, whose Tristes tropiques (1955) is between wanting to find a 'point zero' which would allow for the idea of an originary society--Li draws on Blanchot's review of Levi-Strauss in L'Amiti (Paris: Gallimard, 1971)--and seeing' primitive society' as a construct, necessary to judge present society.
I consider the argument, thought to clinch the moral case for use of a human embryo solely as a means, that (i) only a human individual can be a person, (ii) because it can happen at any time before formation of the primitive streak that an embryo splits into monozygotic twins, no embryo in which the primitive streak has not formed is a human individual, and therefore (iii) no embryo in which the primitive streak has not formed is a person.
In rural areas, many women deliver in very primitive conditions," notes Geller.