different between scum vs yeast

English

Alternative forms

• skum (obsolete)

Etymology

From Middle English scum, scome, skum, skome, scumme, from Middle Dutch sch?me (“foam”), from Proto-Germanic *sk?maz (“froth, foam”), from Proto-Indo-European *skew- (“to cover, conceal”). Cognate with Dutch schuim (“foam”), German Schaum (“foam”), Danish and Swedish skum (“foam”). Compare also French écume (“scum”), Italian schiuma (“foam”), Walloon schome (“scum, foam”), Lithuanian šamas (“catfish”) and skanus (“tasty”) from the same Germanic source. Related to skim.

Pronunciation

• IPA^(key): /sk?m/
• Rhymes: -?m

Noun

scum (countable and uncountable, plural scums)

1. (uncountable) A layer of impurities that accumulates at the surface of a liquid (especially molten metal or water).

2. (uncountable) A greenish water vegetation (such as algae), usually found floating on the surface of ponds

3. The topmost liquid layer of a cesspool or septic tank.
4. (uncountable, slang, chiefly US) semen
5. (derogatory, slang) A reprehensible person or persons.

Synonyms

• (layer of impurities): dross, impurities
• (layer of impurities on molten metal): cinder, scoriae, slag
• (person considered reprehensible): bastard

Derived terms

• scumbag
• scummy
• scum of the earth

Translations

Verb

scum (third-person singular simple present scums, present participle scumming, simple past and past participle scummed)

1. To remove the layer of scum from (a liquid etc.).
2. To remove (something) as scum.
   • 1590, Edmund Spenser, The Faerie Queene, II.vii:

     Some scumd the drosse, that from the metall came; / Some stird the molten owre with ladles great […].

3. To become covered with scum.
   • 1769, Elizabeth Raffald, The Experienced English House-keeper, pp.321-322:

     Take the smallest Cucumbers you can get, and as free from Spots as possible, put them into a strong Salt and Water for nine or ten Days, or 'till they are quite Yellow, and stir them twice a Day at least, or they will scum over, and grow soft

4. (obsolete) To scour (the land, sea etc.).
5. (obsolete) To gather together, as scum.
   • 1815, Rudolf Ackerman and Frederic Shoberl, The Repository of Arts, Literature, Commerce, Manufactures, Fashions and Politics:

     A great majority of the members are scummed together from the Jacobinical dregs of former periods of the revolution.

6. (video games, informal) To startscum or savescum.

Translations

Anagrams

• CMUs, MCUs, USMC, cums

English

Etymology

From Middle English yest, yeest, gest, gist, from Old English ?ist, ?yst, from Proto-West Germanic *jestu, from Proto-Germanic *jestuz. Cognate with Saterland Frisian Jääst (“yeast”), West Frisian gêst, gist (“yeast”), Dutch gist (“yeast”), German Low German Gest (“yeast”), German Gischt (“sea foam”), Swedish jäst (“yeast”), Norwegian jest (“yeast”), Icelandic jöstur (“yeast”).

Pronunciation

• enPR: y?st, IPA^(key): /ji?st/
• (rare) IPA^(key): /i?st/
• Rhymes: -i?st

Noun

yeast (countable and uncountable, plural yeasts)

1. An often humid, yellowish froth produced by fermenting malt worts, and used to brew beer, leaven bread, and also used in certain medicines.
2. A single-celled fungus of a wide variety of taxonomic families.
   1. A true yeast or budding yeast in order Saccharomycetales.
      1. baker's yeast, Saccharomyces cerevisiae
         1. A compressed cake or dried granules of this substance used for mixing with flour to make bread dough rise.
      2. brewer's yeast, certain species of Saccharomyces, principally Saccharomyces cerevisiae and Saccharomyces carlsbergensis.
   2. Candida, a ubiquitous fungus that can cause various kinds of infections in humans.
      1. The resulting infection, candidiasis.
3. (figuratively) A frothy foam.
   • 1851, Herman Melville, Moby Dick:

     But what most puzzled and confounded you was a long, limber, portentous, black mass of something hovering in the centre of the picture over three blue, dim, perpendicular lines floating in a nameless yeast.

Derived terms

Translations

See also

• leaven
• nutritional yeast

Verb

yeast (third-person singular simple present yeasts, present participle yeasting, simple past and past participle yeasted)

1. To ferment.
2. (of something prepared with a yeasted dough) To rise.
3. (African-American Vernacular, slang) To exaggerate

References

Anagrams

• Yates, Yeats, as yet, teasy, yates, yeats