sulfurous

adjective sul·fu·rous \ ˈsəl-fə-rəs , -fyə- also (especially for sense 1a) ˌsəl-ˈfyu̇r-əs \
variants: or chiefly British sulphurous

Definition of sulfurous

1 a :of, relating to, or containing sulfur especially with a lower valence than sulfuric compounds
  • sulfurous esters
b :resembling or emanating from sulfur and especially burning sulfur
2 a :of, relating to, or dealing with the fire of hell :infernal
b :scathing, virulent
  • sulfurous denunciations
c :profane, blasphemous
  • sulfurous language

sulfurously

adverb

sulfurousness

noun

Is it sulfur or sulphur?

The spelling sulfur predominates in U.S. technical usage, while both sulfur and sulphur are common in general usage. British usage tends to favor sulphur for all applications. The same pattern is seen in most of the words derived from sulfur.


Recent Examples of sulfurous from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sulfurous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of sulfurous

15th century


SULFUROUS Defined for English Language Learners

sulfurous

adjective

Definition of sulfurous for English Language Learners

  • chemistry : of, relating to, or containing sulfur


SULFUROUS Defined for Kids

sulfurous

adjective sul·fu·rous
variants: also sulphurous \ˈsəl-fə-rəs\

Definition of sulfurous for Students

:containing or suggesting sulfur
  • a sulfurous odor

Medical Dictionary

sulfurous

adjective sul·fu·rous
variants: or chiefly British sulphurous \ˈsəl-f(y)ə-rəs, also esp for 1 ˌsəl-ˈfyu̇r-əs\

medical Definition of sulfurous

1 :of, relating to, or containing sulfur especially with a lower valence than sulfuric compounds
  • sulfurous esters
2 :resembling or emanating from sulfur and especially burning sulfur


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