surface density

USAGE SUMMARY

"surface density" is correct and can be used in written English.
You can use this term to refer to the density of a surface or the amount of mass per unit area. For example, "The surface density of the apple was measured at five kilograms per square meter."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Waterline is not Kelman-lite, but it does ease back on surface density, on the vivid ebb and flow of consciousness.

The Guardian - Books

The ratio of the surface density to the local median surface density is relatively constant along an arm.

Science Magazine

Suppose that the disk has a larger surface density.

Earth, Planets and Space

The surface density of particles, NAg is 26 μm−26

Nanoscale Research Letters

Surface density maps were prepared based on refractive index calibrations.

Journal of Pharmaceutical and Biomedical Analysis

Overdensities in the surface density are coincident with regions of reduced gas thickness.

Science Magazine

Increased surface density of "free" MOP potentiates the endogenous opioid signaling and activates the cellular internalization machinery, secondarily causing the sharp reduction in MOP surface density.

Plosone

The transient increase in MOP surface density of (Fig. 1D) is especially interesting.

Plosone

Absolute surface area (Sa) per lung was calculated by multiplying surface density by lung volume.

Plosone

MOP surface density and mobility were determined by temporal autocorrelation analysis (Fig. 1C).

Plosone

For instance, a 0.01ρmax surface density in anti-CD3 still triggered an optimal Ca2+i signal.

Plosone

Expert writing Tips

Best practice

When using "surface density", ensure you clearly define the units of measurement (e.g., mass per unit area) to avoid ambiguity. Provide context to what "surface" refers to.

Common error

Avoid using "surface density" when you actually mean volume density. "Surface density" refers to the amount of something on a surface, while volume density refers to the amount within a three-dimensional space. Understand that "volume density" is very different.

Linguistic Context

The phrase "surface density" functions as a noun phrase, typically used as a subject or object in a sentence. It refers to the amount of a substance per unit area. As confirmed by Ludwig AI, this usage is correct and common.

Expression frequency: Very common

Frequent in

Science

95%

News & Media

3%

Formal & Business

2%

Less common in

Wiki

0%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "surface density" is a grammatically correct and very common term, primarily used in scientific and technical fields. It accurately describes the amount of a substance per unit area and is suitable for formal writing. Ludwig AI confirms its correct usage. When using "surface density", ensure you clearly define the units of measurement and context to avoid ambiguity. Related phrases include "areal density" and "superficial density". Avoid confusing it with volume density, which refers to the amount within a three-dimensional space. Its frequent appearance in sources like PlosOne and ACS Nano underscores its significance in scientific discourse.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

areal density

This term directly substitutes "surface" with "areal", emphasizing the area aspect of the density.

superficial density

This alternative uses "superficial" instead of "surface", which is nearly synonymous in this context.

density per unit area

This phrase is a more descriptive way of expressing the same concept, focusing on the calculation method.

mass per area

This simplifies the term by directly stating the components being measured, omitting "density".

areal concentration

Using "concentration" shifts the focus slightly from mass to the number of items per area.

planar density

Replaces "surface" with "planar", suitable when referring to a flat surface.

2D density

Expresses that the density is being measured in two dimensions.

packing density

Focuses on how tightly something is packed on a surface.

distribution density

This highlights the distributional aspect of the density across the surface.

coverage density

This term describes how much of a surface is covered by a substance or element.

FAQs

How is "surface density" measured?

Surface density is typically measured by dividing the mass or amount of a substance by the area it covers. The units are usually expressed as mass per unit area, such as kg/m² or g/cm².

In what contexts is "surface density" commonly used?

"Surface density" is frequently used in scientific fields like physics, chemistry, and materials science to describe the concentration of substances on a surface. It also appears in other fields such as biology to describe cell "surface density" and in geography to describe population distribution.

What's the difference between "surface density" and "areal density"?

The terms "surface density" and "areal density" are often used interchangeably. "Areal density" is a more specific term, emphasizing the measurement of density over a two-dimensional area, but in practice, they refer to the same concept.

Can I use "surface density" in formal writing?

Yes, "surface density" is a formal and scientifically accurate term suitable for use in academic papers, technical reports, and professional communications. It's important to define the context clearly to ensure understanding.