In a situation which is entirely suitable, familiar, or enjoyable.

(chemistry, geology) any chemical element which occurs in nature uncombined with other elements; includes the atmospheric gases, several metals and semimetals, and the nonmetals sulfur and carbon

An element that is used to make up an alloy.

(chemistry) Any synthetic element having an atomic number greater than that of uranium.

(chemistry) A chemical element present in a sample in very small quantities.

(botany) A cell that is linear in form and is responsible for the conduction of water and minerals in the xylem.

A subordinate or secondary element.

(radio) An element of an antenna that receives power directly from the transmitter.

(electronics) A circuit element or property that is present within an electrical component, and has a negative effect on the performance of the circuit.

(category theory) A morphism whose codomain is some specified object.