Mi-to´sis [Gr. mitos, thread.]
Mol-lus´ca [Lat. mollis, soft.]
Mon-o-cot-y-le´don-es [Gr. monos, single; kotyledon, cup-shaped cavity.] A group of flowering plants in which the first leaves of the embryo are alternate, for which reason they are said to have one seed-leaf or cotyledon.
Mon-o-del´phi-a [Gr. monos, single; delphys, womb.] A sub-class of mammals having a single vagina and uterus; embryo attached by a placenta; brain has a corpus callosum. Includes all animals above Monotremes and Marsupials.
Mon´o-tremes [Gr. monos, single; trema, hole.] An order of ornithodelphians.
Mor´u-la [Lat. dim. of morum, mulberry.]
Mul-ti-tu-ber-cu-la´ta [Lat. multus, many; tuberculum, tubercle.]
My-ce´tes [Gr. myketes, bellower.]
Myr-i-ap´o-da [Gr. myrios, numberless; pous, foot.] Insects with numerous pairs of legs, as centipedes.
Nau´ti-loids [Gr. nautilos, sailor; eidos, like.] A group of cephalopods.