Plural of cellulosity; the quality or state of being cellulose or cellulose-like in nature or structure.
From cellulose + -osity (suffix indicating a quality or state, from Latin -osis). Formal term for the property of having cellulose characteristics.
Scientists studying cellulosities are measuring how cellulose-like different materials are—it's like rating things on a plant-fiber scale from 'not very' to 'super plant-like'!
Complete word intelligence in one call. Free tier — 50 lookups/day.