1. invertebrate - Noun
2. invertebrate - Adjective
Destitute of a backbone; having no vertebrae; of or pertaining to the Invertebrata.
One of the Invertebrata.
Source: Webster's dictionaryWhen you get into the whole field of exploring, probably 90 percent of the kinds of organisms, plants, animals and especially microorganisms and tiny invertebrate animals are unknown. Then you realize that we live on a relatively unexplored plan. E. O. Wilson
worms are an example of invertebrate animals Source: Internet
Anecdotal accounts as early as the 1930s suggest that the toads were having a negative impact on endemic invertebrate populations. Source: Internet
Dinosaurs, extensive invertebrate and vertebrate collections, plant taxonomies, and so on - these were the orders of the day. Source: Internet
Fauna A noteworthy feature of Paleozoic life is the sudden appearance of nearly all of the invertebrate animal phyla in great abundance at the beginning of the Cambrian. Source: Internet
Endemism is also generally low and the invertebrate fauna is exceptionally pristine with few, if any, (successful) human-induced introductions of alien species. Source: Internet