chaeto-, chaet-, chaeti-, cheto-, chet-

Describing an organism without setae: There are some life forms, like the sspieces of Arenicolidae, , that have achaetous gill-less tails, which are typical for the uvenile phase of growth.

A chitinous bristle found on an annelid worm: Earthworms and lugworms both possess chaetae which assist them in moving forward.

Descriptive of an organism that has long and thick bristles: or hairs: In her zoology book, Susan read about a chaetic animal which she thought looked like a hedgehog.with long spines.

Pertaining to an organism that has bristles: Earthworms, for example, are chaetiferous creatures and can therefore attach themselves to a surface which can prevent backsliding during peristaltic motion.

The taxonomic genus belonging to the family Chaetodontidae: In her biology book, Susan found the category Chaetodon comprising the butterflyfishes.

In zoology, a chaetodontid: Mary found out that the family Chaetodontidae consisted of chaetodonts or any fish in that family

One of many marine worms of the phylum Chaetognatha: A chaetognath is a transparent marine worm with horizontal lateral and caudal (near the tail) fins and a row of movable curved spines at each side of the mouth.

Regarding an organism that has bristles: Judy read in her book that boars are chaetophorous creatures.

In zoology and outdated, a member of the now extinct invertebrate phylum of Chaetopoda (the modern version is Annelida): Chaetopods are characterized by lateral bunches of bristles called chaetae which provide for locomotion.

The arrangement of bristles on the bodies of dipterous insects: Mosquitoes, mites, and larvae of the arthropods display a pattern of chaetotaxies on their bodies.

The genus of the family Coleochaetaceae: The genus Coleochaete includes aquatic epiphytic green algae that have solitary cells or in diverging filaments that can shape cushion-like masses.

An order of Annelida: Oligochaeta includes the earthworms and related species with very few long flowing hairs.

Parasitic or free-living bacteria; many of which are pathogenic to humans and other animals: A spirochete is a coiled rod-shaped bacterium, many of which cause diseases, such as syphilis and relapsing.

The spirochetes, or spirochaetes, are a phylum of distinctive bacteria, which have long, helically coiled cells.