Concentration in Malayalam

Malayalam words whose English meaning includes “concentration”:

അധികാരകേന്ദ്രീകരണം (adhikarakendreekara) — Concentration (centralization) of power (authority).
ഏകാഗ്രത (eakagratha) — Concentration of mind, close attention, single-mindedness.
നേര്‍പ്പിക്കുക (nerppikkuka) — Make thin, dilute, bring down the concentration (of an acid etc.).
സാന്ദ്രത (saandratha) — Density, concentration.