Ovum

The first stage in the development of any animal is the tiny speck of plasm, hardly visible to the naked eye, which we call the ovum, or egg-cell. ❋ Various (1909)

You and Marshall have a legitimate dispute as to whether an unimplanted but fertilized ovum is a human being deserving equal protection of law. ❋ Unknown (2003)

Basically, this means that ethical concerns about "destroying an embryo" for raw stem cell materials are obviated, since a parthenogenic ovum is not viable -- and furthermore, the elimination of an unfertilized egg every 28 days or so is noncontroversial, so presumbaly "rescuing" eggs before they're flushed will be similarily morally unambiguous. ❋ Unknown (2002)

For Harvey, as every student of his works knows, believed in equivocal generation; and, in the sense in which he uses the word ovum, ❋ Ernst Heinrich Philipp August Haeckel (1876)

Man is developed from a small cell called the ovum or ovule, about the 120th of an inch in diameter, which differs in no apparent respect from the ovules from which other animals grow. ❋ Unknown (2006)

For in all these animals the head is central, but in the sea-urchin the so-called ovum is above [and symmetrical, while in the oyster it is only one side]. ❋ Unknown (2002)

This mecon in the turbinated genera is lodged in the spiral part of the shell, while in univalves, such as limpets, it occupies the fundus, and in bivalves is placed near the hinge, the so-called ovum lying on the right; while on the opposite side is the vent. ❋ Unknown (2002)

The former is incorrectly termed ovum, for it merely corresponds to what in well-fed sanguineous animals is fat; and thus it is that it makes its appearance in Testacea at those seasons of the year when they are in good condition, namely, spring and autumn. ❋ Unknown (2002)

Oysters also have a so-called ovum, corresponding in character to that of the sea-urchins, but existing only on one side of their body. ❋ Unknown (2002)

(In animals the female reproductive cell is called ovum, plural ova.) ❋ Unknown (1976)

In the case of the human subject, the cell from which each child begins its development is formed by the fusion of two cells or globules of protoplasm, one furnished by the mother, and called the ovum, or egg; the other furnished by the father, and called the spermatozoon. ❋ Winfield Scott Hall (N/A)

The development of the child from the ovum is the result of a continued formation and differentiation of cells. ❋ William Thomas Councilman (N/A)

Schwann had some difficulty in deciding which of these views to adopt, but he finally inclined to the view that the ovum is a cell and the germinal vesicle its nucleus, basing his opinion largely upon observations by Wagner which tended to prove that the germinal vesicle was formed first and the ovum subsequently formed round it. ❋ Unknown (N/A)

Either the ovum was a cell and the germinal vesicle its nucleus, or else the germinal vesicle was itself a cell within the larger cell of the ovum and the germinal spot was its nucleus. ❋ Unknown (N/A)

[3] The ovum is really the fully mature egg ready for fecundation; before maturity it should not be called ovum but oöcyte; and in advanced treatises it is so referred to. ❋ William J. Robinson (N/A)

With the discovery of the spermatozoon the preformationists were divided into two schools, one (the ovists) holding that the ovum was the container of the miniature individual, the other ❋ Melvin Moses Knight (1934)

The ovum is a nucleated cell, and all the complicated changes by which the various tissues and organs of the body are formed from it, after it has been fertilized, are the result of two general processes, viz., segmentation and differentiation of cells. ❋ Unknown (1918)

Her contribution to the new being is called the ovum, and it is believed that ova are of two kinds, or, we are quite right in saying, of two sexes. ❋ Unknown (1909)

Since the nucleus of the ovum has divided twice, it is evident that the nucleus remaining now in the ovum is a quarter of the original nucleus. ❋ Unknown (1906)

As all the exquisite details of the most beautiful flower are in essence contained within the tiny bud which first makes its appearance, so is the developed human being, the full-grown man or woman, virtually contained within the tiny cell called the ovum after it has been impregnated or fecundated by the zoosperms. ❋ John Harvey Kellogg (1897)