alum

ex allievo, ex studente

Persona che in passato ha studiato in una determinata scuola o università.

In inglese semplice: Someone who previously studied at a particular school, college, or university.

• My sister is a college alum.
• Several alums returned to campus for the reunion.
• Are you an alum of this university?

Come si usa: an alum of something (She is an alum of the local college.)

Sinonimi: former student, alumnus, alumna

Espressioni comuni: a college alum, a university alum, a fellow alum

allume

Sale dai cristalli chiari usato per trattare il cuoio, fissare i colori sui tessuti e preparare alcuni medicinali.

In inglese semplice: A pale crystal salt used to treat leather, fix colors in cloth, and in some medicines.

• Dissolve the alum in warm water.
• The dyer added alum to help the color stay in the wool.
• Small alum crystals formed at the bottom of the jar.

Sinonimi: potassium alum

Espressioni comuni: potassium alum, alum crystals, alum powder

allume

Qualsiasi sale cristallino con struttura chimica simile a quella dell’allume comune di potassio e alluminio.

In inglese semplice: Any of a group of crystal salts with a chemical structure similar to the common potassium and aluminium salt.

• The laboratory stores several kinds of alum.
• Ammonium alum forms clear crystals.
• Chrome alum contains chromium in place of aluminium.

Espressioni comuni: ammonium alum, chrome alum, an alum crystal

alluminare

Trattare o immergere qualcosa nell’allume, spesso prima di tingere un tessuto.

In inglese semplice: To soak or treat something with a particular crystal salt, often before coloring cloth.

• First, alum the wool.
• The workers alumed the cloth before dyeing it.
• She alums each piece of fabric in a warm solution.

Espressioni comuni: alum the wool, alum the cloth, alum before dyeing