s, a, o, e, l, n, p, r, t, i, x are letters that make 'external respiration'
ER, PI, RES, IRA, re, ti, te, ESP, XT, IR, extern, RN, pi, ration, at, ratio, external, ex, on, ira, respiration, ern, tern, rat, RA, AL, Io, ion, Ra, Re, Al, At, Es, Er, Ir, Rn, Na, Te, Ti, RNA are words within 'external respiration'
1 possible definitions for 'external respiration'
Under this definition, external respiration is a noun and has the following properties:
breathing, respiration, ventilation have the same meaning as 'external respiration'
'external respiration' can be a type of bodily process, body process, bodily function, activity.
smoking, smoke, heaving, hyperventilation, artificial respiration, abdominal breathing, eupnea, eupnoea, hyperpnea, hypopnea, panting, periodic breathing, Cheyne-Stokes respiration, snore, snoring, stertor, snuffle, sniffle, snivel, wheeze, second wind are types of 'external respiration'.
breathing in, exhalation, expiration, breathing out, inhalation, aspiration, intake, inspiration are parts of 'external respiration'.
breathe, take a breath, suspire, take a breather, respire, catch one's breath, rest are derivatives of 'external respiration'.