What does ommatophore mean?
An ommatophore is a stalk-like anatomical structure that bears an eye. The term is used in zoology, particularly when describing the eye-bearing appendages of certain marine invertebrates, although its use is relatively uncommon in general writing. Its name reflects this basic structure: it combines a form meaning “eye” with one meaning “bearing” or “carrying.” An ommatophore is different from the individual optical units, called ommatidia, that make up a compound eye. It is also more specific than the general English term “eye stalk,” since the technical word identifies a particular kind of eye-bearing appendage. The word is therefore most useful in scientific descriptions, species accounts, and comparative anatomy, where precision about the position and organization of an animal’s visual organs matters.
nounA stalk-like appendage that bears an eye, especially in certain marine invertebrates. It is a specialized anatomical term rather than a general word for any eye-bearing structure.
- An anatomical stalk or appendage bearing an eye, especially in certain marine invertebrates.
"The organism uses its ommatophore to detect changes in the surrounding light."
"The ommatophore projects from the front of the animal and ends in a small eye."
"Researchers examined the ommatophore to understand how the organism detects light."
The standard plural is formed by adding -s.
"Several ommatophores project from the organism's body."
An ommatophore is literally an eye on a stalk: nature’s compact solution for positioning a visual organ.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of ommatophore
The word comes from Greek ommatos, meaning “eye,” and phoros, meaning “bearing” or “carrying.” The compound was formed in the vocabulary of zoology to describe a structure that carries an eye at the end of a stalk. Its close terminology includes ommatidium, from the same Greek root for “eye,” referring to an individual unit of a compound eye.
Related word forms
How ommatophore is actually used
This is a specialized zoological term used in technical and scientific writing. It should not be used as a general synonym for an eye or a compound eye.
Easily confused with ommatophore
An ommatophore is a stalk or appendage that bears an eye, whereas an ommatidium is an individual visual unit within a compound eye.