different between firmness vs density

English

Etymology

firm +? -ness

Pronunciation

• (General American) IPA^(key): /?f?mn?s/
• (Received Pronunciation) IPA^(key): /?f??mn?s/
• Hyphenation: firm?ness

Noun

firmness (countable and uncountable, plural firmnesses)

1. The state of being firm
   1. security; steadfastness; good grip
   2. strictness; mental strength
      • France, for the first time since the death of Charlemagne, was governed by a prince of great firmness and ability.

   3. physical durability; rigidness (of material)

Translations

References

• firmness in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.

English

Etymology

Borrowed from Middle French densité or Latin densitas.

Morphologically dense +? -ity

Pronunciation

• (UK) IPA^(key): /?d?n.s?.ti/, /?d?n.s?.ti/
• (US) IPA^(key): /?d?n.s?.ti/, [?d?n.s?.?i]

Noun

density (countable and uncountable, plural densities)

2. (physics) A measure of the mass of matter contained by a unit volume.

   Synonym: mass density
4. The ratio of one quantity, representing something of interest, to another quantity representing space, area, or extent in which the thing of interest is distributed.

   Synonym: number density

6. (mathematics, statistics) The probability that an outcome will fall into a given range, per unit of that range; the relative likelihood of possible values of a continuous random variable.

   Synonym: probability density

7. (dated) Stupidity; denseness.

Hyponyms

• charge density
• energy density
• electron density
• freight density

Derived terms

• arithmetic density
• asymptotic density
• high-density
• medium-density
• low-density
• mass density
• natural density
• number density
• population density

Related terms

• dense

Translations

Anagrams

• Destiny, destiny