Subclinical

Part of speech: adjective

Definitions

1. Referring to a stage of illness or condition that does not present recognizable symptoms but may still affect the body
2. Denoting a medical state that lacks overt signs or symptoms while potentially having physiological effects
3. Describing a condition that exists beneath the threshold of detectable clinical signs, yet may influence health outcomes

Etymology: Medicine has a precise word for an illness that hides below the surface: "subclinical" describes a disease that is present in the body but produces no obvious symptoms, so a doctor would need a test to detect it. The word is built from two plain parts. The prefix "sub-" comes from Latin, where it meant "under" or "below", and it attaches to "clinical", which describes the bedside, the clinic, and the observation of a patient. The root behind "clinical" is Greek. The Greek verb "klinein" meant "to lean" or "to recline," and from it came "klinikos," describing someone bedridden. Late Latin borrowed this as "clinicus," and the word then passed into French as "clinique" before English adopted "clinic" and later "clinical." Physicians used the phrase "clinical" for signs they could observe in a patient lying in bed, the picture that the sickbed displayed. "Subclinical" therefore means something lies beneath that visible picture. The term is a modern medical formation, built on English from these older parts, and its precise sense belongs to the language of diagnosis.

Synonyms: asymptomatic, mild, latent

Antonyms: clinical