What does annulated mean?
"Annulated" is a technical adjective meaning marked with, composed of, or arranged in rings or ring-like bands. It appears most often in scientific description: a zoologist might note that a worm's body is annulated, referring to its series of ring-shaped segments, while a botanist might use it to describe a stem bearing ring-like scars or bands. The word derives from the Latin "annulus," meaning ring, the same root behind familiar terms such as "annual" and "annular." Because it describes a distinctive visual pattern, "annulated" carries a precise, observational connotation rather than any emotional one, and it is essentially confined to formal and scholarly registers. Readers encounter it mainly in field guides, taxonomic descriptions, and older natural-history texts, where accuracy of physical description matters. Its close relative "annulate" is used interchangeably in most contexts, though "annulated" more strongly suggests the passive state of being marked by rings rather than actively ring-shaped. For anyone reading scientific prose about segmented animals or banded plant structures, recognizing "annulated" makes such descriptions immediately clearer.
adjectiveHaving or marked with rings or ring-like bands; arranged in or characterized by a series of circular bands.
- Marked or decorated with rings or ring-like bands (used especially in zoology and botany to describe segmented or banded organisms and structures).
- Arranged in, or consisting of, a series of rings.
"The caterpillar's annulated body displayed alternating bands of green and black."
"The microscope revealed that the beetle's antennae were distinctly annulated."
"In older botanical texts, stems described as annulated bore raised ring-like scars at regular intervals."
The same Latin root that gives us "annual" and "annuity" also names the ringed segments of earthworms — the word "annulus" simply means "little ring."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of annulated
"Annulated" comes from the Latin "annulus," meaning "ring" or "little ring," via the Latin verb "annulare" and its past participle "annulatus," meaning furnished with rings. English adopted the adjective in the early modern period, alongside related forms such as "annular" (ring-shaped) and "annulet" (a small ring, also a heraldic charge). The root "annulus" also underlies everyday words like "annual" and "annuity," which share the sense of something recurring in yearly cycles — a semantic extension from the idea of a ring as a closed circuit.
Related word forms
How annulated is actually used
"Annulated" is a technical term found chiefly in scientific writing — zoology, botany, and descriptive anatomy — rather than in everyday conversation. It is a near-synonym of "annulate," and the two are often used interchangeably in scientific literature.
Easily confused with annulated
"Annular" describes something shaped like a single ring (such as an annular eclipse), while "annulated" describes something bearing multiple rings or banded markings.