rhinorrhea
UK[ˌraɪ.nəʊˈriː.ə]US[ˌraɪ.noʊˈriː.ə]
n
a condition in which the nasal cavity is filled with a significant amount of mucus fluid, commonly known as a runny nose.
Morpheme Breakdown
rhino
rrhea
rhino
nose
rrhea
flow
Etymology
the word 'rhinorrhea' is a modern medical term constructed directly from ancient greek components. the first element, 'rhino-', derives from the greek word rhīs, which has meant "nose" since antiquity. the second element, '-rrhea', originates from the greek rhoia (a flow), itself from the proto-indo-european root sreu-, meaning "to flow". this same root gives us other english words like 'stream' and 'rheostat'. in medical terminology, the combination follows a transparent descriptive logic: it literally denotes a "flow from the nose," accurately capturing the symptom's essence. this pattern is consistent with other medical terms like 'diarrhea' (flow through) and 'amenorrhea' (absence of menstrual flow).
Analysis
Structure: rhino (nose) + rrhea (flow)
rhino: from greek rhīs (genitive rhinos), meaning "nose". it functions as the root indicating the anatomical location.
rrhea: from greek rhoia, meaning "a flow" or "a flux", from the verb rhein, "to flow". it functions as a suffix denoting an abnormal discharge.
Examples
allergic rhinitis often presents with symptoms of sneezing, itching, and rhinorrhea.
the common cold typically causes nasal congestion and rhinorrhea.
clear, watery rhinorrhea can be a sign of cerebrospinal fluid leakage following trauma.