(medicine) A bag used to resuscitate a patient by supplying air or oxygen directly to the trachea and into the lungs.

Of or pertaining to a valediction (“an act of parting company; a speech made when parting company”); designed for or suitable to an occasion of bidding farewell or parting company.

An address given on an occasion of bidding farewell or parting company. / (specifically, Canada, US) A speech given by a valedictorian at a commencement or graduation ceremony.

A type of valve having a small orifice and a needle-like plunger, allowing precise regulation of generally small flow rates.

(mathematics) Any function in which each point in the domain maps to just one point in the range

(transitive) To assess (something) as being valuable or admirable. / (transitive) To fix the price of (something) at an artificially high level, usually by government action.

A short curtain that usually hangs along the top edge of a window. / A decorative framework used to conceal the curtain mechanism and so on at the top of a window.

To estimate the value of something; to appraise or to make a valuation.

A person who valuates; an assessor or appraiser. / A person who appreciates something and sets a value on it.

(medicine, biology) Of or pertaining to valves, such as those of the heart. / Like a valve.