The activity of climbing mountains, or scaling rock faces.

(aviation) The rate at which an aircraft gains altitude. A negative rate of climb implies descent.

(climbing) A bolt permanently fixed to a rock face to allow climbers to attach ropes etc

Pertaining to any of several supposedly critical years of a person's life. / Critical or crucial; decisive.

A critical stage or decisive point; a turning point.

(business) a primary care medical center run by and on the premises of a non-medical company office or factory

In a climatic manner; regarding the climate.

(climbing) Rock climbing without the aid of ropes or other equipment, sometimes in an urban environment

The sport of scaling rock faces, either with or without ropes and other equipment.

A species that is affected by an environmental danger prior to other species, thus serving as an early warning system for the other species with regard to a danger.