| MESOBLAST | • mesoblast n. (Biology) the middle, germinal layer of undifferentiated cells of an early embryo; it becomes the mesoderm. • MESOBLAST n. another name for the mesoderm, the middle germ layer of the embryo in early development. |
| MESOCARPS | • mesocarps n. Plural of mesocarp. • MESOCARP n. the middle layer of a pericarp. |
| MESOCRANY | • mesocrany n. The condition of being mesocranic. • MESOCRANY n. medium skull breadth. |
| MESODERMS | • mesoderms n. Plural of mesoderm. • MESODERM n. the middle germ layer of an embryo. |
| MESOGLEAL | • mesogleal adj. Relating to mesoglea. • MESOGLEAL adj. relating to the mesoglea. |
| MESOGLEAS | • mesogleas n. Plural of mesoglea. • MESOGLEA n. a gelatinous layer between the endoderm and ectoderm of a coelenterate, also MESOGLOEA. |
| MESOGLOEA | • mesogloea n. Alternative form of mesoglea. • MESOGLOEA n. a gelatinous layer between the endoderm and ectoderm of a coelenterate, also MESOGLEA. |
| MESOLITES | • mesolites n. Plural of mesolite. • MESOLITE n. a zeolitic mineral, a hydrous silicate of alumina, lime, and soda. |
| MESOMERES | • mesomeres n. Plural of mesomere. • MESOMERE n. an embryonic segment. |
| MESOMORPH | • mesomorph n. A person with pronounced muscular development and low body fat. • mesomorph n. (Bodybuilding): Theoretical body type in which a person naturally has lower body fat and greater ability… • MESOMORPH n. a person of muscular body type. |
| MESOPAUSE | • mesopause n. (Meteorology) In the atmosphere, the boundary between the mesosphere and the thermosphere or ionosphere… • MESOPAUSE n. the upper limit of the atmosphere. |
| MESOPHILE | • mesophile n. An organism, especially a microorganism, that lives and thrives at moderate temperatures. • MESOPHILE n. the ideal growth temperature of 20 to 45 degrees. |
| MESOPHYLL | • mesophyll n. (Botany) The soft internal parenchyma of a leaf. • MESOPHYLL n. the photosynthetic tissue of a green plant borne beneath the epidermis, also MESOPHYL. |
| MESOPHYLS | • mesophyls n. Plural of mesophyl. • MESOPHYL n. the soft tissue of a leaf. |
| MESOPHYTE | • mesophyte n. (Botany) Any normal terrestrial plant that grows in environments that have an average supply of water. • MESOPHYTE n. a land plant growing in an environment with moderate moisture. |
| MESOSAURS | • mesosaurs n. Plural of mesosaur. • MESOSAUR n. an extinct aquatic reptile. |
| MESOSCALE | • mesoscale adj. Of medium size or extent; between microscale and macroscale. • mesoscale adj. (Meteorology, of a weather phenomenon) Roughly 2-200 kilometers in extent; between microscale and synoptic. • mesoscale n. A scale of intermediate size. |
| MESOSOMES | • mesosomes n. Plural of mesosome. • MESOSOME n. a convoluted invagination of the cell wall in some bacteria. |
| MESOTRONS | • mesotrons n. Plural of mesotron. • MESOTRON n. a former name for the meson, a subatomic particle. |
| MESOZOANS | • mesozoans n. Plural of mesozoan. • MESOZOAN n. any of a phylum of wormlike organisms. |