Plain English Meaning
The student's physical body, including how well it sees, hears, feels, and moves. If the body isn't working well that day, learning and flying are harder.
Full Definition
The student's body and its physical condition, which provides the means to perceive the environment through the senses and to perform the physical actions required by flight. In instructional terms, it is one of the basic factors that affects how a person perceives and learns, because the quality of perception depends on the soundness and capability of the body doing the perceiving.
Context Anchor
Used in aviation instructor and human factors discussions about why a person may perceive the same situation differently from someone else.
Derivation
From Greek 'organon' meaning 'instrument' or 'tool.' A physical organism is literally the living physical instrument through which a person experiences the world. In an instructional context, the body is the 'tool' the student uses to receive information and perform .