(uncountable) The act of signing up or registering for something. / (countable) That which registers or makes something official, e.g. the form or paper that registers.

(pharmacology) A histamine antagonist, proposed as a treatment for excessive gastric acidity but withdrawn after human trials showed liver damage.

(obsolete, chemistry) An apparatus used in separating, such as a separating funnel. / (obsolete, surgery) A surgical instrument for separating the pericranium from the cranium.

comparative form of terfy: more terfy