(healthcare) The medical attention that a patient receives upon first contact with a healthcare system; either a general practitioner or the A&E or ER department of a hospital.

(chemistry) in a coordination compound, the number of negative ions needed to satisfy the charge on the central metal ion

(chemistry) An amine, containing a single radical, of general formula R-NH₂

A person or organization producing basic agricultural commodities, such as a farmer or cattle producer.

Hypothermia caused by exposure to a cold environment.

(chemistry) any compound of general formula R-PH₂

(scholarly studies) An original work, especially one by a notable author whose work is now the subject of commentaries (secondary sources).

The organic matter produced from carbon dioxide by photosynthesis

The dwelling where a person usually lives. A person may have only one primary residence at any given time, which is used for legal purposes such as determining where a person votes or pays taxes.

plural of primary residence. Note: the primary residence of multiple people since each person can have only one primary residence.