(mineralogy) any mineral that is present in small amounts in a rock, but is not considered to be characteristic of the rock

A manner of breathing in an organism that supplements or temporarily replaces the principal manner of breathing.

plural of accessory fruit

plural of accessory mineral

(meteorology) A small cloud formation which is found attached to, or close by, a major cloud of one of the cloud genera, which is responsible for its development and continuance.

plural of accessory cloud

plural of accessory nerve

(photography) A clip or track on a camera that allows for accessories to be attached.

plural of accessory shoe

(neuroanatomy) Either of a pair of motor nerves that are the 11th cranial nerve of higher vertebrates, arise from the medulla oblongata and the upper part of the spinal cord, controlling the pharynx and the muscles of the upper chest, back and shoulders.