Category: M

  • Megaphyll

    Megaphyll

    Leaf size class proposed by Raunkiaer (1934): larger than 164,025 mm2; Nowadays often used for all leaves that are not microphylls. A large leaf, usually used for the complex leaves of ferns and seed plants that are not microphylls.  

  • Medusiform

    With a central head and many radiating branches.  

  • Medullary ray

    (Anatomical) plates of tissue (usually parenchymatous) radiating through the vascular cylinder from the pith to the cortex. In the kidney, one of many slender processes composed of one or two collecting ducts and other straight tubules that project into the cortex from the bases of renal pyramids.  

  • Medifixed

    (Of hairs or anthers) attached at or near the middle.  

  • Mealy

    With many small grains, as of flour. Swollen hairs which collectively form a covering resembling cooking meal. Appearing as if covered with coarse meal; (taste) like freshly ground flour. With a floury, whitish texture. The texture of certain comestibles can be described as yielding, desiccated, pulverulent, or disagreeably gritty and friable. Such terminology is often…

  • Mauve

    (Colour) pale purple.  

  • Mature

    (Of a fruit) said when fully grown and ripe, ready to distribute seeds.  

  • Maturation

    The phenomena of ripening in plants. The process of development to full effectiveness of cells, tissues, organs, and systems of the body or the person in general. Also applied to social, emotional, and intellectual development. The process of becoming mature or fully developed. Process of obtaining full development, as in the development of mature ova…

  • Matted

    Closely intertwined, forming a carpet. With hairs that are intertwined. Tangled or connected; said of diseased lymph nodes that have grown into one another, creating a clump or mass of tissue.  

  • Matt, matte

    Dull, not shiny.