(US) A person skilled in repairing and maintaining automobiles and other motor vehicles.

(biology) The breaking of food into digestible chunks, normally using the teeth.

Alternative spelling of servomechanism

Infantry which is transported in mechanized vehicles but still fights on foot.

plural of mechanical energy

(psychology) A psychological strategy used unconsciously by people to cope with harmful or stressful situations. / (evolutionary biology) An automatic reaction of the body against foreign antibodies.

plural of defense mechanism

plural of reaction mechanism

(physics) The proposed interaction between elementary particles and the Higgs field that imbues the particles with mass and breaks the electroweak symmetry.

An electrolarynx.