Verb

(crystalliz)

(transitive, chemistry, physics) to make something form into crystals

I crystallized the copper sulphate by slowly cooling a saturated solution.

to assume a crystalline form

The copper sulphate crystallized from solution.

to give something a definite or precise form

After some thought, I crystallized my ideas for the paper.

to take a definite form

My ideas crystallized overnight.

to coat something with crystals, especially with sugar

We crystallized the fruit by coating in sugar.

Verb

(concentrat)

(ambitransitive) To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force.

to concentrate rays of light into a focus

to concentrate the attention

Let me concentrate !

To increase the strength and diminish the bulk of, as of a liquid or an ore; to intensify, by getting rid of useless material; to condense (qualifier, as opposed to 'dilute').

to concentrate acid by evaporation

to concentrate by washing

To approach or meet in a common center; to consolidate.

Population tends to concentrate in cities.

* {{quote-book, year=2006, author=

, title=Internal Combustion , chapter=2 citation , passage=Buried within the Mediterranean littoral are some seventy to ninety million tons of slag from ancient smelting, about a third of it concentrated in Iberia. This ceaseless industrial fueling caused the deforestation of an estimated fifty to seventy million acres of woodlands.}}

To focus one's thought or attention (on).