different between perimeter vs extremity

English

Etymology

Late Middle English: via Latin from Greek perimetros, based on peri- ‘around’ + metron ‘measure’. From Ancient Greek ?????????? (perímetros).

Pronunciation

• (UK, US) enPR: p?r?m'?t?r, IPA^(key): /p????m?t?(?)/
• Rhymes: -?m?t?(?)

Noun

perimeter (plural perimeters)

1. (mathematics) The sum of the distance of all the lengths of the sides of an object.
2. (mathematics) The length of such a boundary.
3. The outer limits of an area. See synonyms at circumference.
4. A fortified strip or boundary usually protecting a military position.
5. An instrument for determining the extent and shape of the field of vision.

Synonyms

• (mathematics): circumference

Translations

Synonyms

• (given grounds): premises

Related terms

• perimeter fence
• perimetric, perimetrical
• perimetrically

Anagrams

• peritreme

English

Etymology

From Middle English extremite, from Old French extremité, from Latin extr?mit?s (“extremity; border, perimeter; ending”), from extrem?s (“furthest, extreme”) + -it?s (ultimately from Proto-Indo-European *-teh?ts (“suffix forming nouns indicating a state of being”); see extreme. Extrem?s is derived from exter (“external, outward”) (ultimately from Proto-Indo-European *h?e??s (“out”)) + -issimus (“suffix indicating a superlative”) (ultimately from Proto-Indo-European *-is- (“suffix indicating a comparative”) + *-(t)m?mo- (“suffix indicating the absolutive case”)).

Pronunciation

• (Received Pronunciation) enPR: ?kstr?'m?t?, IPA^(key): /?k?st??m?ti/, /?k-/
• (General American) IPA^(key): /?k?st??m?ti/, /-?i/
• Hyphenation: ex?tre?mi?ty

Noun

extremity (countable and uncountable, plural extremities or extremitys) (obsolete)

1. The most extreme or furthest point of something. [from c. 1400]
2. An extreme measure.
3. A hand or foot. [from early 15th c.]
4. A limb (“major appendage of a human or animal such as an arm, leg, or wing”). [from early 15th c.]

Synonyms

• (furthest point): tip
• (major appendage of human or animal): appendage, limb

Derived terms

• extremital

Related terms

• extreme
• extremely
• extremeness
• extremism
• extremist

Translations

Further reading

• extremities on Wikipedia.Wikipedia
• extremity in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• extremity in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.