stroma


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stroma

 [stro´mah] (Gr.)
the tissue forming the ground substance, framework, or matrix of an organ, as opposed to the functioning part or parenchyma. adj., adj stro´mal, stromat´ic.

stro·ma

, pl.

stro·ma·ta

(strō'mă, strō'mă-tă), Do not confuse this word with stoma or struma.
1. The framework, usually of connective tissue, of an organ, gland, or other structure, as distinguished from the parenchyma or specific substance of the part.
2. Aqueous phase of chloroplasts, that is, chloroplast matrix.
3. Archaic term for mitochondrial matrix.
4. IN fungi, a mass of interwoven hyphae; it is here that fruiting bodies develop.
[G. strōma, bed]

stroma

/stro·ma/ (stro´mah) pl. stro´mata   [Gr.] the matrix or supporting tissue of an organ.stro´malstromat´ic

stroma

(strō′mə)
n. pl. stro·mata (-mə-tə)
1. The connective tissue framework of an organ, gland, or other structure, as distinguished from the tissues performing the special function of the organ or part.
2. The spongy, colorless framework of a red blood cell or other cell.
3. The colorless semiliquid material inside a chloroplast, in which the thylakoid membranes are embedded and where the dark reactions of photosynthesis occur.
4. A dense mass of fungal hyphae on or in which reproductive structures develop.

stro′mal adj.
stro·mat′ic (-măt′ĭk) adj.

stroma

[strō′mə] pl. stromas, stromata
Etymology: Gk, covering
the supporting tissue or the matrix of an organ, as distinguished from its parenchyma. Some kinds of stromata are the vitreous stroma, which encloses the vitreous humor of the eye, and Rollet's stroma, which contains the hemoglobin of a red blood cell. stromatic, adj.

stro·ma

, pl. stromata (strō'mă, -tă)
1. The framework, usually of connective tissue, of an organ, gland, or other structure, as distinguished from the parenchyma or functional parts of an organ.
2. Aqueous phase of chloroplasts, i.e., chloroplast matrix.
[G. strōma, bed]

stroma

The tissue forming the framework of an organ. Compare PARENCHYMA.

stroma

see CHLOROPLAST.

Stroma

A term used to describe the supportive tissue surrounding a particular structure. An example is that tissue which surrounds and supports the actually functional lung tissue.
Mentioned in: Pneumonia

stroma

fibrous, connective tissue framework

stro·ma

, pl. stromata (strō'mă, -tă)
Framework, usually of connective tissue, of an organ, gland, or other structure.
[G. strōma, bed]

stroma

pl. stromata [Gr.] the tissue forming the ground substance, framework, or matrix of an organ, as opposed to the functioning part or parenchyma, e.g. stroma iridis, stroma vitreum.
References in periodicals archive ?
4) Both TE and TB display peripheral palisading, as well as a follicular stroma characterized by orderly, concentric collagen and fine-spindled fibroblasts, arranged in parallel to the periphery of tumor nodules.
A partial thickness removal of anterior stroma was done by using crescent knife.
Caption: Figure 2: Endometrial glands and stroma in a fibrous background are the hallmarks of endomteriosis (x40)
Using simple modified methodology, we tried to determine the impact of stroma proportion on progression-free survival and overall survival.
Histologically, PA can be classified as cell rich, stroma rich or classic (balanced amount of epithelial and mesenchymal components).
The stroma surrounding the glands is quite cellular and usually mitotically active.
In fact, the impact of a dysregulated stroma could persist even in the absence of a tumor, according to Shearer.
Contact of migrating epithelial cells with the type I collagen in anterior stroma is believed to result in to more effective attachment between epithelium and stroma.
The corneal biopsies were systematically reported, beginning with a macroscopic description (colour, diameter and consistency) along with microscopic details and noted in a systematic manner from epithelium, basement membrane, stroma, Descemet membrane and endothelium.
They are separated by thin, hypocellular fibrous septa that lack ovariantype stroma or desmoplasia, as seen in MEST and CDC, respectively, or the myxoid, edematous stroma seen in oncocytoma with predominant tubulocystic pattern.
Small focal hemorrhages can be often seen in the stroma of villi.