What does viscid mean?
Viscid is a formal adjective describing something adhesive, sticky, or glutinous. It is especially common in scientific and descriptive writing about plant secretions, mucus, oils, biological materials, and fluids. The word often implies that a substance is not merely somewhat sticky but has a consistency that makes it adhere strongly to another surface or resist flowing normally. In everyday speech, “sticky” would usually be the simpler choice, while “viscid” gives the observation a technical or literary tone. Viscid is related in origin to “viscous” and “viscosity,” although its usage tends to focus more directly on adhesion, while those terms commonly concern resistance to flow. Although uncommon in general conversation, viscid is useful when precision matters, particularly in descriptions of natural substances and material behavior.
adjectiveAdhesive or sticky in consistency; glutinous.
- Adhesive or glutinous; having a tendency to stick to surfaces or other materials.
"The insect was trapped by the viscid secretion coating the plant's leaves."
"A viscid layer on the leaf surface prevents the insect from flying away."
"The thick syrup proved viscid and adhered stubbornly to the spoon."
Behind its technical profile, viscid is simply the polished way to say sticky.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does viscid come from?
Viscid derives from the Latin adjective viscidus, meaning “sticky” or “glutinous.” This was connected with Latin viscus, a word associated in classical usage with mistletoe and its adhesive berries. English “viscous” and “viscosity” came through related Latin forms, while “viscoelastic” was formed later from the same root.
How viscid is actually used
Chiefly formal or technical, especially in biology, botany, physics, and materials science. It is more precise than the everyday word “sticky” and usually suggests a substance whose consistency causes adhesion or resistance to flow.
Easily confused with viscid
Viscid emphasizes stickiness or adhesion, whereas viscous more often describes a material's resistance to flowing.