'Invertebrate' definitions:
Definition of 'invertebrate'
From: WordNet
adjective
Lacking a backbone or spinal column; "worms are an example of invertebrate animals" [syn: invertebrate, spineless] [ant: vertebrate]
noun
Any animal lacking a backbone or notochord; the term is not used as a scientific classification
Definition of 'Invertebrate'
From: GCIDE
- Invertebrate \In*ver"te*brate\, a. (Zool.) Destitute of a backbone; having no vertebr[ae]; of or pertaining to the Invertebrata. -- n. One of the Invertebrata. [1913 Webster]
- Age of invertebrates. See Age, and Silurian. [1913 Webster]
Synonyms of 'invertebrate'
From: Moby Thesaurus
- abulic,
- afraid,
- amphibian,
- aquatic,
- baby,
- big baby,
- biped,
- canine,
- cannibal,
- carnivore,
- chicken,
- chicken liver,
- cosmopolite,
- coward,
- cowardly,
- crustacean,
- crustaceous,
- crybaby,
- disorganized,
- doormat,
- dull tool,
- emasculate,
- faint,
- fainthearted,
- feeble,
- feebleminded,
- feline,
- forceless,
- fraid-cat,
- fraidy-cat,
- frail,
- funk,
- funker,
- gnawer,
- gutless wonder,
- herbivore,
- impotent,
- inadequate,
- ineffective,
- ineffectual,
- infirm,
- insectivore,
- jellyfish,
- lightweight,
- lily liver,
- mammal,
- mammalian,
- marsupial,
- marsupialian,
- meek soul,
- milksop,
- Milquetoast,
- molluscan,
- mollycoddle,
- mouse,
- namby-pamby,
- nebbish,
- nonentity,
- omnivore,
- pansy,
- pantywaist,
- pliable,
- primate,
- protozoan,
- protozoic,
- pushover,
- quadruped,
- reptile,
- rodent,
- ruminant,
- sad sack,
- scaredy-cat,
- scavenger,
- sissy,
- softling,
- softy,
- sop,
- spineless,
- ungulate,
- varmint,
- vermin,
- vertebrate,
- weak,
- weak sister,
- weak-kneed,
- weak-minded,
- weak-willed,
- weakling,
- white feather,
- white liver