If someone asks you to make a difficult decision — like what to have for dinner — it might lead to rumination, or a long period of deep thought.

Use the noun rumination when there's thoughtful consideration going on. If your grandfather answers every question by saying, "Hmm. Let me think about that," he is a fan of rumination. It comes from the verb ruminate, which means "to think deeply," but also means "to chew the cud." Both words come from the Latin word ruminatus, which has the same meaning and which is rooted in rumen, or "gullet."

Primary Meanings of rumination

a calm, lengthy, intent consideration
(of ruminants) chewing (the cud)
Full Definitions of rumination

n a calm, lengthy, intent consideration

contemplation, musing, reflection, reflexion, thoughtfulness
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cogitation, study
attentive consideration and meditation
meditation, speculation
continuous and profound contemplation or musing on a subject or series of subjects of a deep or abstruse nature
(religion) contemplation of spiritual matters (usually on religious or philosophical subjects)
introspection, self-contemplation, self-examination
the contemplation of your own thoughts and desires and conduct
contemplation of things past
laborious cogitation
self-analysis, soul-searching
a penetrating examination of your own beliefs and motives
examen, examination
a detailed inspection of your conscience (as done daily by Jesuits)
Type of:
the process of giving careful thought to something

n (of ruminants) chewing (the cud)

“ruminants have remarkable powers of rumination
Type of:
chew, chewing, manduction, mastication
biting and grinding food in your mouth so it becomes soft enough to swallow

n regurgitation of small amounts of food; seen in some infants after feeding

Type of:
disgorgement, emesis, regurgitation, vomit, vomiting
the reflex act of ejecting the contents of the stomach through the mouth

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