Mammals (class Mammalia /mÉËmeÉªli.É/ from Latin mamma breast) are a clade of endothermic amniotes distinguished from reptiles and birds by the possession of a neocortex (a region of the brain), hair, three middle ear bones and mammary glands.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  burgeoning(Noun) the act of budding or sprouting. 2  burgeoning(Noun) a bud or branch. 3  burgeoning(Noun) a new growth or expansion of something.  burgeoning(Adjective) that buds, grows or expands; developing.
(swÉl) v. swelled, swolâ¢len swelled, swellâ¢ing, v.i. 1. to enlarge in bulk, as by growth, absorption of fluid, or engorgement. 2. (of a body part or area) to enlarge abnormally without growth of tissue. 3. to rise in waves, as the sea.