from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An ovum.
- n. An ovule.
from the GNU version of the Collaborative International Dictionary of English
- n. An ovule.
from The Century Dictionary and Cyclopedia
- n. An ovule; an ovum.
- n. [capitalized] In conchology, the typical genus of Ovulidæ.
I shall be very anxious to know what your opinion is, particularly with regard to the tubes and all adhering filaments; the question now occupying botanists, being this, is the embryo derived directly from the boyau or is it derived from some parts of the ovulum?
Previous to starting on his mission to Assam, he communicated to the Society the first two of a series of valuable papers on the development of the vegetable ovulum in
I shall not say what I see, as I want to have your original opinion unbiassed, etc.; but whenever you see the tubes with filaments adhering to their apices, pray mark attentively what takes place, both at the point and at the place where the tube leaves the ovulum; your matchless 1/1500 would do the thing.
The female cell of the animal organism is always called the ovum (or ovulum, egg, or egg-cell); the male cells are known as the sperm or seed-cells, or the spermatozoa (also spermium and zoospermium).
A case in which the future organs of reproduction are developed; and here is a most curious circumstance, namely, that though the calyptra, which is a genuine pistillum containing an _ovulum_, becomes torn up from its base, yet it remains in contact with that part of the seta in which the sporules are developed until these make their appearance, or even later!! so that one might as well deny a pistillum to a Reseda, or Leontice, as deny it to these plants on the strength of its being torn from its attachments.
I was told that of such a character at first are the spirits who afterwards are received amongst those who constitute the province of the SEMINAL VESICLES in the Grand Man or Heaven; for in those vesicles the semen is collected, and is enclosed in a covering of suitable matter fit to preserve the prolific quality of the seed from being dissipated but which may be put off in the neck of the uterus, so that what is reserved within may be serviceable for conception, or the impregnation of the ovulum.
"In some plants belonging to this last-mentioned family, especially in Tradascantia virginica, and several nearly related species, it is uncommonly distinct, not in the epidermis and in the jointed hairs of the filaments, but in the tissue of the stigma, in the cells of the ovulum even before impregnation, and in all the stages of formation of the grains of pollen, the evolution of which is so remarkable in tradascantia.
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