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1. Anatomy The tissue characteristic of an organ, as distinguished from associated connective or supporting tissues.
2. Botany A simple plant tissue, composed of thin-walled cells and forming the greater part of leaves, roots, the pulp of fruit, and the pith of stems.

[New Latin, from Greek parenkhuma, visceral flesh, from parenkhein, to pour in beside : para-, beside; see para-1 + en-, in; see en in Indo-European roots + khein, to pour; see gheu- in Indo-European roots.]

pa·ren′chy·mal, par′en·chym′a·tous (păr′ĕn-kĭm′ə-təs) adj.
References in classic literature ?
The other had increased much in size; and towards its posterior end, a clear space was formed in the parenchymatous mass, in which a rudimentary cup-shaped mouth could clearly be distinguished; on the under surface, however, no corresponding slit was yet open.
The central cylinder consists of collateral vascular bundles (Figure 2D and E) which enclose the parenchymatous pith.
In India, NCC is characterized by small, multiple, diffuse parenchymatous involvement (8).
Parenchyma (P)###Jinyuan###Five or six layers of irregularly arranged parenchymatous cells, with wall containing microgrooves###Fig.
The reason behind this totipotency is the presence of parenchymatous tissues with thin cell walls and densely packed cytoplasm, full of nutritive compounds in scutella of mature seeds, because scutellar tissue is meant for the absorption of nutrients from endosperm (Campbell et al.
composed mainly of a large parenchymatous pith and a broad cortex
The weak to negligible activity of protein in tissue sections of mastitic cattle in present study could be due to degenerative changes present in the parenchymatous cells, atrophy of lactiferous acini along with connective tissue proliferation and impaired activity of endoplasmic reticulum.
Anatomical characteristics of mantle in plan views: Mantle parenchymatous in all layers.
Kaphahn (1904-1905) noted silica bodies in parenchymatous cells