Muscle connecting ventricular walls, heart.

In nuclear engineering, a neutron moderator is a medium that reduces the speed of fast neutrons, ideally without capturing any, leaving them as thermal neutrons with only minimal (thermal) kinetic energy.

The moderator lamp is a type of 19th century oil lamp.

A discussion moderator or debate moderator is a person whose role is to act as a neutral participant in a debate or discussion, holds participants to time limits and tries to keep them from straying off the topic of the questions being raised in the debate.

a Google service that used crowdsourcing to rank user-submitted questions, suggestions and ideas.