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1. Lacking nothing essential to the whole; complete of its nature or kind.
2. Being without defect or blemish: a perfect specimen.
3. Thoroughly skilled or talented in a certain field or area; proficient.
4. Completely suited for a particular purpose or situation: She was the perfect actress for the part.
a. Completely corresponding to a description, standard, or type: a perfect circle; a perfect gentleman.
b. Accurately reproducing an original: a perfect copy of the painting.
6. Complete; thorough; utter: a perfect fool.
7. Pure; undiluted; unmixed: perfect red.
8. Excellent and delightful in all respects: a perfect day.
9. Botany Having both stamens and pistils in the same flower; monoclinous.
10. Capable of sexual reproduction. Used of fungi.
11. Grammar Of, relating to, or constituting a verb form expressing action completed prior to a fixed point of reference in time.
12. Music Designating the three basic intervals of the octave, fourth, and fifth.
1. Grammar The aspect of a verb that expresses action completed prior to a fixed point of reference in time.
2. A verb or verb form having this aspect.
tr.v. (pər-fĕkt′) per·fect·ed, per·fect·ing, per·fects
To bring to perfection or completion: perfected the technique to isolate the virus.

[Middle English perfit, from Old French parfit, from Latin perfectus, past participle of perficere, to finish : per-, per- + facere, to do; see dhē- in the Appendix of Indo-European roots.]

per·fect′er n.
per′fect·ness n.
Synonyms: perfect, consummate, faultless, flawless, impeccable
These adjectives mean being wholly without flaw: a perfect diamond; a consummate performer; faultless logic; a flawless instrumental technique; speaks impeccable French.
Usage Note: The adjective perfect is often considered an absolute term like chief and prime; some maintain that it therefore cannot be modified by more, quite, relatively, and other qualifiers of degree. But the qualification of perfect has many reputable precedents (most notably in the preamble to the US Constitution in the phrase "in order to form a more perfect Union"). When perfect means "ideal for a purpose," as in There could be no more perfect spot for the picnic, modification by degree is considered acceptable; in fact 74 percent of the Usage Panel approved this example in our 2004 survey. See Usage Notes at absolute, equal, unique.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in classic literature ?
But Wolf Larsen was the man-type, the masculine, and almost a god in his perfectness. As he moved about or raised his arms the great muscles leapt and moved under the satiny skin.
Was Van Horn's darkness as the darkness of the blue-bottle fly that his fly-flapping maid smashed and disrupted in mid-flight of the air?-- as the darkness into which passed the mosquito that knew the secret of flying, and that, despite its perfectness of flight, with almost an unthought action, he squashed with the flat of his hand against the back of his neck when it bit him?
Ngurn made pilgrimage personally and gathered the smoke materials for the curing of Bassett's head, and to him made proud announcement and exhibition of the artistic perfectness of his intention when Bassett should be dead.
Toward homological characterization of semirings: Serre's conjecture and Bass's perfectness in a semiring context.
We have the obscenity of youngsters wanting to have plastic surgery because of the propaganda of perfectness put out by a television programme.
Thus, figuratively, we wear a mask, or we "put on" love like a garment as Paul commands in Colossians 3:5-8: "And above all these things put on charity, which is the bond of perfectness" because you have "have taken off your old self with its practices and have put on the new self, which is being renewed in knowledge in the image of its Creator." (18) Thus, we "put on Christ"--the ultimate role model--when we emulate him.
For the perfectness of data transmission in clustering various routing techniques proposed.
With the revelation of the Quran in the seventh century in Hijaz, Macca today, the language is taken to higher levels, demonstrated perfectness and "became the model for the classical language" (Yushmanov 1961:4).
These NPs are rather loosely composed of [As.sub.4][S.sub.4] crystallites (as it follows from enlarged bulk lifetimes in Table 1), packing efficiency being defined by crystallographic perfectness of arsenic sulfide polymorphs (decaying in [alpha]-[As.sub.4][S.sub.4]-[beta]-[As.sub.4][S.sub.4]-pararealgar row, corresponding to REA2-REA1-REA3 sequence).
They had a kind of perfectness in their earlier versions - a certain kind of energy.
[t]he perfectness of reading is when a book hits you and you hit it and during those hours you are completed in a way you have never been before.
4), she writes at the poem's close, 'Till jealous Daylight interrupt--/ And mar thy perfectness' (ll.