Exam: TOEFL

Definition: A person who studies the origin and history of words and their meanings.

Example: The etymologist explained how the word 'quarantine' comes from the Italian word 'quaranta', meaning forty.

Definition: To explain the origin and history of a word.

Example: In her lecture, she will etymologize several common English words.

Definition: To explain the origin and history of a word.

Example: Linguists often etymologize words to understand their roots and how their meanings have changed over time.

Definition: The study of the origin and history of words, including how their meanings and forms have changed over time.

Example: The etymology of the word 'school' reveals its roots in the Greek word 'scholē', meaning leisure or discussion.

Definition: A word or root from which another word is derived, often from a different language or an earlier form of the same language.

Example: The Latin word 'duo' is an etymon for the English word 'duet'.

Definition: Relating to a group of bacteria that are characterized by their simple cell structure and are found in various environments.

Example: Eubacterial organisms play a crucial role in many ecological processes.

Definition: A type of bacterium that is part of a group distinct from archaebacteria, typically found in various environments and often involved in processes like fermentation and decomposition.

Example: Eubacteria play a crucial role in the nitrogen cycle by helping to convert nitrogen into forms usable by plants.

Definition: A type of organism whose cells have a nucleus enclosed within membranes, distinguishing them from prokaryotes, which do not have a nucleus.

Example: Humans are eucaryotes, as our cells contain a nucleus.

Definition: A type of chromosomal material that is active in gene expression and appears lighter when stained with certain dyes.

Example: Euchromatin is important for the transcription of genes in the cell.

Definition: Connected to the study or practice of improving the genetic quality of a population, often through selective breeding.

Example: The eugenic policies of the early 20th century aimed to enhance the genetic traits of future generations.

Definition: In a way that relates to the study of improving the genetic quality of a population, often through selective breeding.

Example: The scientists discussed the implications of their research eugenically, considering the ethical aspects of genetic selection.