jani-, Janus

(Latin: door, entrance; gate)

Janus was the god of gates and doors,
represented with two faces.

1. Conjoined twins with one head and two opposite faces.
2. The janiceps asymmetros, conjoined twins with one imperfect and one more complete face.
3. The janiceps parasiticus, conjoined twins in which there is partial duplication of the head in the frontal plane.
1. A door-keeper or porter.
2. A caretaker of a building, especially of a school, who has charge of the cleaning, heating, etc.
A female janitor.
The first month of the Gregorian calendar; named for the Roman god Janus.
The name of an ancient Italian deity, regarded as the doorkeeper of heaven, as guardian of doors and gates, and as presiding over the entrance upon or beginning of things; represented with a face on the front and another on the back of his head; the doors of his temple in the Roman Forum were always open in time of war, and shut in time of peace.