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5,190 words — headwords with part of speech, pronunciation, and a plain-language definition.

razon: obsolete spelling of razón
razonabilidad: reasonableness
razonable: reasonable
razonablemente: reasonably
razonadamente: in a reasoned manner
razonado: reasoned
razonador: giving reason, explanatory
razonamiento: reasoning
razonar: to reason (exercise rational faculty); to explain, justify (provide an acceptable reason)
razón: reason; reasoning; correctness, rectitude, a point; ratio; rate
razón de Estado: national interest
razón de ser: raison d'être
razón social: business name (the legally registered name of a corporation)
razón áurea: golden section
raíl: rail
raíz: root; root vegetable; root (of a tooth, a nail, etc); root; origin
raíz cuadrada: square root
raíz de oso: osha (Ligusticum porteri)
raíz del traidor: alkanet (Alkanna tinctoria)
raña: a sediment of clayey quartzite
re: re
re: very, so, super; a lot, really (used with verbs)
reabastecer: to resupply (with)
reabastecimiento: refueling
reabrir: to reopen
reabsorber: to reabsorb
reabsorbible: reabsorbable, resorbable
reabsorción: reabsorption
reaccionante: reacting
reaccionar: to react
reaccionario: reactionary
reaccionario: reactionary
reaccionarismo: reactionary ideas
reacción: reaction; recoil; reactionary political faction or movement
reacción en cadena: chain reaction
reacción en cadena de la polimerasa: polymerase chain reaction
reacción química: chemical reaction
reacción redox: redox reaction
reacio: reluctant
reacomodación: repositioning; rearrangement
reacomodamiento: rearrangement
reacomodar: to reaccommodate; to relocate; to rejiggle, rearrange
reacomodo: refitting
reacondicionamiento: reconditioning
reacondicionar: to recondition, to refurbish; to reorganize
reacreditación: reaccreditation
reactancia: reactance
reactante: reagent
reactante de fase aguda: acute-phase protein
reactivación: revival, recovery, reactivation
reactivador: reactivating
reactivamente: reactively
reactivar: to reactivate, bring back, reenact
reactividad: reactivity
reactivo: reactive
reactivo: reagent
reactor: jet engine; rocket engine; atomic reactor; chemical reactor
reactor nuclear: nuclear reactor
reactualización: reenactment
reactualizar: to reupdate