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.
Full Definition of SWELL. intransitive verb. 1. c: to form a bulge or rounded elevation. 2. a: to become filled with pride and arrogance b: to behave or speak in a pompous, blustering, or self-important manner c: to play the swell. 3. : to become distended with emotion. transitive verb. 1.