What does annulose mean?
Annulose is a technical adjective describing something made up of rings or ring-like segments. Its principal use is in zoology, where it characterizes animals whose bodies are divided into a series of ringed sections — most famously the annelid worms, such as earthworms and leeches, whose segmented bodies allow flexible movement. The word derives from the Latin annulus, meaning 'ring' or 'little ring', linking it to related terms like annular and annual. Though largely confined to scientific and historical naturalist literature today, annulose remains a precise way to describe ringed structure, whether in an animal's anatomy or in any object marked by concentric or repeated rings. It is neutral in tone, formal in register, and rarely encountered outside specialist contexts, making it a distinctive addition to a vocabulary of descriptive terms.
adjectiveHaving or consisting of rings or ring-like segments; in zoology, describing an animal whose body is composed of a series of ringed segments.
- (Zoology) Having a body composed of ring-like segments, as in annelid worms.
- (General) Marked or formed with rings; ringed in structure.
"The earthworm's annulose body allows it to contract and extend as it moves through the soil."
"Annelids are the classic annulose animals, their bodies built from repeated ring-shaped segments."
"Under the microscope, the annulose structure of the specimen was immediately apparent."
Every earthworm is essentially a living stack of rings — which is exactly what 'annulose' was coined to describe.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of annulose
Annulose comes from the Latin annulus, meaning 'ring', combined with the adjectival suffix -ose indicating 'full of' or 'having the nature of'. It entered English scientific vocabulary during the era of classical natural history, when zoologists sought Latin-based terms to classify animal forms by body plan. It shares its root with annular (ring-shaped), annulate (furnished with rings), and even annual (from annus, 'year', a related circular notion).
How annulose is actually used
A technical term used chiefly in zoology and older natural-history writing; rare in everyday speech. It carries no emotional connotation and is neutral in register, appearing mostly in scientific or scholarly contexts.
Easily confused with annulose
Both mean 'ringed', but 'annulose' is the older zoological term for ring-segmented bodies, while 'annulated' is more general and also used in botany and heraldry for objects marked or decorated with rings.