Sieve Elements

Science / Biology / Sieve Elements: Tubular, thin-walled cells that form a system of tubes extending from the roots to the leaves in the phloem of plants; lose their nuclei and organelles at maturity, but retain a functional plasma membrane.

Other Words for Elements

Elements Noun Synonyms: (adverse or unfavourable) weather, climatic conditions

Sieve Tube Members

Science / Biology / Sieve Tube Members: Phloem cells that form long sieve tubes. See sieve elements. MORE

Sieve Plates

Science / Biology / Sieve Plates: Pores in the end walls of sieve elements that connect the sieve elements together. The end walls of sieve tube cells that are perforated (sieves). MORE

Sieve Cells

Science / Biology / Sieve Cells: Conducting cells in the phloem of vascular plants. See sieve elements MORE


Health / Acupuncture / Elements: The Chinese belief that everything around us comes in five elements. These elements are fire, water, metal, earth, and wood. The body’s meridians are organized in such a way to reflect this. These m MORE

The Four Elements

Entertainment / Literature / The Four Elements: The alchemical theory that all matter was composed of four components: earth, air, fire, and water. Each element had two spectrums of quality: hot/cold and dry/wet. For instance, earth was cold and dr MORE

Vessel Elements

Science / Biology / Vessel Elements: Short, wide cells arranged end to end, forming a system of tubes in the xylem that moves water and solutes from the roots to the rest of the plant. Large diameter cells of the xylem that are extremely MORE