homologies

[huh-mol-uh-jee, hoh-]

noun, plural ho·mol·o·gies.

the state of being homologous; homologous relation or correspondence.

Biology.

a fundamental similarity based on common descent.

a structural similarity of two segments of one animal based on a common developmental origin.

Chemistry. the similarity of organic compounds of a series in which each member differs from its adjacent compounds by a fixed increment, as by CH₂.

Mathematics. a classification of figures according to certain topological properties.

Origin:
1650–60; < Greek homología agreement, equivalent to homólog(os) homologous + -ia -y³

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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homologies is always a great word to know.

So is lollapalooza. Does it mean:

an extraordinary or unusual thing, person, or event; an exceptional example or instance.

a chattering or flighty, light-headed person.

American Heritage

Science Dictionary

homology

(hə-mŏl'ə-jē) Pronunciation Key

A homologous relationship or correspondence.
The relation of the chemical elements of a periodic family or group.
The relation of the organic compounds forming a homologous series.
A topological classification of configurations into distinct types that imposes an algebraic structure or hierarchy on families of geometric figures.

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