Theca

Word THECA
Character 5
Hyphenation the ca
Pronunciations N/A

Definitions and meanings of "Theca"

What do we mean by theca?

A case, covering, or sheath, such as the covering of the pollen sacs of an anther or the thick cell wall of certain dinoflagellates. noun

A case; box; sheath. noun

capitalized A genus of pteropods, having a sheath-like shell, typical of the family Thecidæ. Sowerby, 1845. Also named Hyolithes (Eichwald, 1840). noun

In the graptolites, one of the receptacles of the zoöids. noun

A sheath; a case noun

The chitinous cup which protects the hydranths of certain hydroids. noun

The more or less cuplike calicle of a coral. noun

The wall forming a calicle of a coral. noun

Any external case or sheath. noun

The pollen producing organ usually found in pairs and forming an anther. noun

The twin layers of cells surrounding the basal lamina of an ovarian follicle noun

The membrane complex enveloping the cells of certain plankton including diatoms and dinoflagellates noun

The calcareous wall of a corallite, the exoskeleton of a coral polyp noun

Outer sheath of the pupa of certain insects noun

A case or sheath especially a pollen sac or moss capsule noun

Any external case or sheath.

The pollen-producing organ usually found in pairs and forming an anther.

The twin layers of cells surrounding the basal lamina of an ovarian follicle.

The membrane complex enveloping the cells of certain plankton including diatoms and dinoflagellates.

The calcareous wall of a corallite, the exoskeleton of a coral polyp.

A case for the corporal cloth used in the Eucharist.

That dude that is literally the nicest, chillest person you know and a person you can open up to about any situation. Because of this amount of positive vibes in a singular person, they find themselves hard getting into relationships due to the fact of being in the “friend zone” majority of the time. Urban Dictionary

That dude that is literally the nicest, chillest person you know and a person you can open up to about any situation. Because of this amount of positive vibes in a singular person, they find themselves hard getting into relationships due to the fact of being in the “friend zone” majority of the time. Urban Dictionary

Synonyms and Antonyms for Theca

  • Antonyms for theca
  • Theca antonyms not found!

The word "theca" in example sentences

Fully formed ovarian follicle: • Outside the theca interna some fibrous tissue becomes condensed to form another covering for the follicle called the theca externa. ❋ Saktivinayaga (2010)

Last year we found and bought a second hand relic, some fabric from the blanket which St Therese used set in a silver theca itself set in a monstrance style stand. ❋ Unknown (2009)

Bibliographies of alchemical texts date from an early period, but the two standard lists are J. Ferguson, Biblio - theca Chemica, 2 vols. ❋ ALLEN G. DEBUS (1968)

The medulla oblongata not growing so hard as the spinalis, was doubtless owing to its not being confined in an osseous theca, but surrounded with soft parts, which allowed it room to spread. ❋ James Parkinson (N/A)

A chronic inflammatory involvement of a theca through which an important tendon plays may cause adhesions to form. ❋ John Victor Lacroix (N/A)

Hence therefore may proceed inflammation of quicker or of slower progress, disease of the vertebræ, derangement of structure in the medulla, or in its membranes, thickening or even ulceration of the theca, effusion of fluids, &c. ❋ James Parkinson (N/A)

The result of this would be a thickening of the theca, or membranes, and perhaps an increase in the volume of the medulla itself, which would gradually occasion such a degree of pressure against the sides of the unyielding canal, as must eventually intercept the influence of the brain upon the inferior portion of the medullary column, and upon the parts on which the nerves of this portion are disposed. ❋ James Parkinson (N/A)

The various forms therefore may not depend proximately on fructification itself, but on the peculiar growth given to the species, in the same way in fact as we have the numerous modifications of the theca in mosses, etc. and the infinite modifications of the carpels in Phaenogams. ❋ William Griffith (N/A)

As in mosses the influence of the male _disregarding the ovule_, is thrown into the development of the seta, and then of the theca at the apex of this; there can be no conclusive reason why in ferns the same influence should be thrown into the development of the frond, and then into that of the theca. ❋ William Griffith (N/A)

The appearance of those I have described as existing about the points of growth, are exactly the same as the processes mixed with the anthers of mosses, and of which the anthers are nothing but more developed growths; this would point out, as indeed appears to me otherwise evident, (especially from consideration of the theca, and its want of style,) that ferns are lower organised as sexual beings than mosses and Hepaticae. ❋ William Griffith (N/A)

But taking all circumstances into due consideration, particularly the very gradual manner in which the disease commences, and proceeds in its attacks; as well as the inability to ascribe its origin to any more obvious cause, we are led to seek for it in some slow morbid change in the structure of the medulla, or its investing membranes, or theca, occasioned by simple inflammation, or rheumatic or scrophulous affection. ❋ James Parkinson (N/A)

In the carpal region, the flexors of the phalanges are contained together in the carpal sheath, and this is the principal theca in the carpal region. ❋ John Victor Lacroix (N/A)

-- The theca through which the deep digital flexor (perforans) plays in the tarsal region, begins about three inches above the inner tibial malleolus and extends about one-fourth of the way down the metatarsus. ❋ John Victor Lacroix (N/A)

But of what nature that morbid change is; and whether originating in the medulla itself, in its membranes, or in the containing theca, is, at present, the subject of doubt and conjecture. ❋ James Parkinson (N/A)

In addition to aspirating synovia, the introduction of equal parts of alcohol and tincture of iodin into the theca is necessary. ❋ John Victor Lacroix (N/A)

-- Acute non-infectious synovial distension of tendon sheaths is treated by aspirating as much synovia as possible from the affected theca (this is, of course, done under strict asepsis) and by means of bandages, a uniform degree of pressure is kept over the parts for ten days or two weeks. ❋ John Victor Lacroix (N/A)

Assuming however the state just mentioned as the proximate cause, it may be concluded that this may be the result of injuries of the medulla itself, or of the theca helping to form the canal in which it is inclosed. ❋ James Parkinson (N/A)

Where an infectious synovitis involves a structure such as the sheath of the tendon of the deep digital flexor (perforans) the condition is grave and because of the location of this theca the prognosis is not much more favorable than in an articular synovitis. ❋ John Victor Lacroix (N/A)

The famous treasure of Monza contains the theca persica, enclosing a text from the Gospel of St. John, sent by Pope St. Gregory the Great (590-604) to Queen Theodolinda for her son Adalaold. ❋ 1840-1916 (1913)

Formerly used to designate the sheath, or cloth-covering (theca) in which relics were wrapped up. ❋ 1840-1916 (1913)

“Bro, [Albert] is such a [Theca].” “[Yah] i know, such a great person” ❋ Wintr01 (2021)

“Bro, [Albert] is such a [Theca].” “[Yah] i know, such a great person” ❋ Wintr01 (2021)

Cross Reference for Theca

What does theca mean?

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