What does annulate mean?
Annulate is an adjective describing something formed of, marked by, or arranged in rings or ring-like bands. It derives from the Latin annulus, meaning 'ring', and appears chiefly in scientific writing: zoologists use it to characterize animals whose bodies are divided into ring-shaped segments, such as earthworms and other annelids, while botanists may use it to describe stems or structures bearing concentric bands. The word is closely related to annular, which refers to something having the form of a single ring, and to annulus itself. Because it belongs largely to formal, technical registers, annulate is rarely heard in casual conversation, but it offers precise vocabulary for describing segmented or banded forms. Its enduring usefulness lies in biology, where the ringed architecture of many organisms demands an exact descriptive term.
adjectiveFormed or arranged in rings or ring-like bands; marked by circular structures or annuli.
- (Zoology & botany) Having or consisting of rings or ring-like segments; marked with annuli.
- Shaped like or arranged in a ring or series of rings; ringed in appearance.
"The earthworm's body is distinctly annulate, divided into a long series of ring-like segments."
"An annulate worm moves by contracting and relaxing its successive ring-like segments."
"Under the microscope, the annulate structure of the plant stem was clearly visible as a series of concentric bands."
The word 'annulate' comes straight from the Latin for 'little ring' — and it's the reason biologists describe earthworms as walking rings.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of annulate
Annulate comes from the Latin annulatus, derived from annulus, meaning 'ring' or 'circular band'. The term entered English usage in scientific contexts, where Latin terminology was routinely adopted for anatomical description. It shares its root with related words such as annular, annulus, and annulet, all preserving the core sense of ring-ness inherited from Latin.
Related word forms
How annulate is actually used
Primarily a technical term used in zoology, botany, and descriptive anatomy rather than everyday speech. It carries a neutral, scientific connotation and is most often encountered in descriptions of segmented organisms such as annelid worms.
Easily confused with annulate
Annual means occurring once every year, whereas annulate means arranged in rings or ring-like segments.
Annular describes something shaped like or relating to a single ring, while annulate describes something composed of or marked by multiple rings or bands.