Collenchymas

Part of speech: noun

Definitions

1. A type of plant tissue characterized by cells that have unevenly thickened primary walls, providing support and flexibility for growing stems and leaves
2. This plant tissue consists of living cells with flexible walls that thicken unevenly, enabling structural support during growth stages
3. Cells in this specific plant tissue type possess thickened walls that allow for both strength and flexibility, aiding young plants in their development

Etymology: Plant cells need support, and one tissue that provides it takes its name from the Greek for glue. "Collenchyma" combines "kolla", meaning glue, with "-enchyma", meaning something poured in, the same root that gives us "parenchyma". The name refers to the way these cells were thought to be stuck together, or to the thick, gluey look of their walls under the microscope. Because the word is a technical coinage built from classical Greek parts, it was made by plant anatomists rather than inherited from ancient writers. Greek "kolla" also gave English words such as "colloid" and "collagen", both of which share the sense of something sticky or binding. "Collenchymas" is simply the plural, referring to several such tissues or to more than one kind of this support tissue.