We may also note the continuance of the genus Euomphalus, with its discoidal spiral shell.
The spirally-curved discoidal shells of the persistent genus Nautilus are also not unknown, and some of these likewise exhibit very considerable dimensions.
The allantois first grows out on the dorsal side of the embryo, where it coalesces with the subzonal membrane, over a small discoidal area.
The placenta of Apes and Man might be called metadiscoidal, in order to distinguish it from the primitive discoidal placenta of the Rodentia and Insectivora.
In the Carnivora again we have to start from the discoidal placenta, as shewn by the fact that the allantoic region of the placenta is at first discoidal (p.
The view previously stated, that the zonary placenta is derived from the discoidal one, receives from this fact a strong support.
The placenta has a somewhat discoidal form, with a slightly convex uterine surface and a concave embryonic surface.
In the Armadilloes (Dasypus) the placenta is truly discoidal and deciduate (Owen and Koelliker).
The second type of differentiation from the primitive form of discoidal placenta is illustrated by the Lemuridae, the Suidae, and Manis.
In the Sloths the placenta approaches the discoidal type (Turner, No.
The small size of the umbilical vesicle in Orycteropus indicates that its discoidal placenta is not, like that in Carnivora, directly derived from a type with both allantoic and umbilical vascularization of the chorion.
These discoidal scrapers are of extremely common occurrence on the Yorkshire Wolds.
Discoidal weights formed of stone are not unfrequently found on the sites of Roman occupation.
In several instances, jet necklaces do not comprise any of these flat plates, but consist merely of a number of flat discoidal beads |461| with one larger piece for a pendant.
Several such discoidal stones, somewhat faceted on their periphery, were found by the late Hon.
A large number of discoidal stones, formed from flattish quartzite pebbles, have been found on the Culbin Sands,[965] Elginshire.
Between these two latter is a wide plain space known as the discoidal cell.
Turning now to the discoidal spot we shall observe a similar development.
A patch of brilliant orange extends from the dark tip to just beyond the discoidal spots.
In each wing there is a space, thediscoidal cell, j Fig.
In a case like this we can hardly resist the conclusion that the discoidal spot has spread over the fore-wing and become a blotch, and in some English varieties of rhamni we actually find the spot drawn out into a streak.
By these nervures the wing is mapped out into a series of spaces of which one, the discoidal cell, is the most important.
This discoidal arrangement of the hair is typical of the emblem of fructification worn by the virgin in the Muingwa festival.
Sometimes the hair, instead of being worn in the complete discoidal form, is dressed upon two curving twigs, and presents the form of two semicircles upon each side of the head.
The Gelechiidae are a large family with similar larval habits; the moths are distinguished by the sinuate termen of the hindwing and the connexion of its sub-costal nervure with the discoidal areolet.
The wing-patterns are handsome and striking; usually an unsealed "eyespot" is conspicuous at the end of each discoidal areolet.
The heavydiscoidal quartz stone skimmed through the air above the stretch of sand, and striking with its beveled edge the kneeling figure on the temple, the future of the victor at chungke became in one moment the past.
If our planetary system were far 'outside' this cluster, the Milky Way would appear to telescopic vision as a ring, and at a still greater distance as a resolvable discoidal nebula.
I shall close this communication by a notice of certain discoidal stones occasionally found in the mounds of the United States.
These penitencies were thus performed, to entreat the Lord to restrain his anger and withhold his vengeance; for, at this period, an epidemic malady ravaged the earth, and destroyed a third part of its inhabitants.
Upon which the King commanded that they should chant the mass, for it was still early; which he heard with much devotion as well as all his companions, for he was a true Catholic.
About this time the Jews throughout the world were arrested and burnt, and their fortunes seized by those lords under whose jurisdiction they had lived, except at Avignon, and the territories of the Church dependent on the Pope.
Discoidal areolets: Odonata; a varying number of rows of cells on the outer side of the triangle between the short sector (M 4 of Comst.
Discoidal area: the middle area or field: Trichoptera; that area of the tegmina between the posterior or anal and the anterior or costal areas = d.
The discoidal stones with this shape were probably used as mullers; they were also used as pestles in the hollow mortars, as the edge is often chipped or pecked, which would account for the pits on the faces.
A few citations may be given in regard to certain forms sometimes differently classed, especially some of the discoidal stones to be hereafter described.
Many of thediscoidal stones--which will be spoken of under the proper head--may have had these functions.
There are numerous references to discoidal stones by various writers, but a majority of the objects do not fall under any explanation that has so far been given.
A smooth discoidal stone, some 4 or 5 inches in diameter, and a wooden paddle are the instruments used to shape the bowl.
Again and again she moistens her paddle and discoidal stone, and continues the spanking process until the entire bowl of the pot is shaped.
Vos thus used in Spanish is a term of contempt, equivalent to toi in French.
The disciples of reform poured from all quarters into the Low Countries, and made prodigious progress, with all the energy of proselytes, and too often with the fury of fanatics.
Defn: Any fresh-water air-breathing mollusk belonging to Planorbis and other allied genera, having shells of a discoidal form.
Defn: Discoidal by derivation; -- applied especially to the placenta of man and apes, because it is supposed to have been derived from a diffused placenta.
A number of discoidal stones with marginal grooves, and some stone rubbers and polishers, are recorded from this station.
No metal objects were found, nor any support-rings of clay, nor discoidal stones.
Fragments of pottery of the same character as those from Morges, discoidal stones, hammer and sharpening stones, were among the relics.
No stone implements were found, with the exception of the polished discoidal stone sent to Dr.
Discoidal by derivation; -- applied especially to the placenta of man and apes, because it is supposed to have been derived from a diffused placenta.
One of a species of coccoliths, having an oval discoidal body, with a thick strongly refracting rim, and a thinner central portion.
The discoidal cell is usually less than half the length of the wing from base to tip.
The discoidal cell is frequently open, or simply closed by a slender veinlet, which it is not always easy to detect; the anal vein is never lacking.
On the other hand in Cycloclypeus, which is a discoidal structure attaining two and a quarter inches in diameter, the number of segments formed by continuous gemmation must be many thousand.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "discoidal" in a variety of sentences. We hope that you will now be able to make sentences using this word.
