Definition of squamous
1a : covered with or consisting of scales : scalyb : of, relating to, or being a stratified epithelium that consists at least in its outer layers of small scalelike cells
2 : of, relating to, or being the anterior upper portion of the temporal bone of most mammals including humans
Recent Examples of squamous from the Web
DNA itself can absorb both UVA and UVB rays, causing mutations which, if unrepaired, can lead to non-melanoma (basal cell carcinoma, squamous cell carcinoma) or melanoma skin cancers.
Meanwhile, Pettey warns that cancers of the eye itself, including squamous cell carcinomas and malignant melanomas, also can result from sun exposure.
Her mother has Lynch syndrome, a hereditary disorder that sharply raises the risk of certain cancers, and since 2003, Priscilla Joho has suffered colon cancer, uterine cancer and squamous cell carcinoma of the skin.
There are three main types of skin cancers – basal cell carcinoma, squamous cell carcinoma and melanoma.
It is designed to provide a non-surgical alternative to remove basal cell and squamous cell carcinoma without leaving a scar.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'squamous'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of squamous
Middle English, from Latin squamosus, from squama scale
First Known Use: 15th century
Medical Definition of squamous
1a: covered with or consisting of scalesb: of, relating to, or being a stratified epithelium that consists at least in its outer layers of small scalelike cells The epidermis is a stratified squamous epithelium forming the barrier that excludes harmful microbes and retains body fluids.—Terry Lechler et al., Nature, 8 Sept. 2005
2: resembling a scale or plate; especially : of, relating to, or being the thin anterior upper portion of the temporal bone
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