83 words in this vocabulary list
noun a chemical substance that has a sour taste and the ability to react with bases and certain metals
adjective having a pH of less than 7, resembling acid in taste, or sharp or sarcastic in manner
noun a medical condition characterized by a lack of oxygen reaching the tissues
adjective relating to or suffering from anoxia
noun the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.
noun the flowing blood in a person's circulatory system
noun a medical term for tooth decay or cavities
noun a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
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adjective existing in a person or thing from birth; innate; inborn
adjective A term used to describe something that is clear, transparent, and resembling a crystal in appearance or structure.
noun a period of time during which events or phenomena recur in the same sequence
verb to ride a bicycle or motorcycle
adjective relating to or characterized by cycles or recurrence
noun the act or result of decomposing
verb to deprive of vitality or strength; weaken
verb to make a liquid thinner or weaker by adding water or another solvent
adjective having been made weaker in force, content, or value by the addition of something else
noun the pattern of spacing among individuals within a population
adjective describing something that is inactive or sleeping, not currently in use or showing signs of life
noun a hormone-producing gland or tissue.
adjective relating to or denoting glands that secrete hormones directly into the blood or lymph.
adjective lasting for a very short time; short-lived
noun waste matter discharged from the bowels after food has been digested; excrement
noun all of the people born and living at about the same time, regarded collectively
noun a cell or group of cells that secretes a substance for use elsewhere in the body
adjective relating to or affecting glands, characterized by the presence of glands
noun a pulsation of the heart, including one complete systole and diastole
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noun the branch of biology that deals with the study of the microscopic structure of tissues
noun a glassy or transparent substance
adjective glassy or transparent
noun an extreme or irrational fear of water, often a symptom of rabies
noun the ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells
adverb Involuntarily is an adverb that describes an action done without conscious control or intention.
adjective involuntary - done without will or conscious control
noun a lachrymal bone, which is a small bone forming part of the eye socket
adjective relating to or situated near the tear ducts or tear glands
noun A colorless fluid containing white blood cells, that bathes the tissues and drains through the lymphatic system into the bloodstream.
noun a gland in female mammals that secretes milk for feeding their young
noun a slimy substance, typically found in the nose and throat, that helps to protect and lubricate the mucous membranes
adjective describing something that is not alive or living
verb to bind or compel someone to a particular course of action
adjective bound by a legal, moral, or other obligation; compulsory
noun a person who habitually relies on or exploits others and gives nothing in return
noun a punctuation mark used at the end of a declarative sentence to indicate a full stop or after abbreviations
adjective occurring or appearing at regular intervals
noun a single beat or throb
noun a rhythmic beating or throbbing
verb the present participle of the verb 'pulse'; to beat or throb rhythmically
adjective describing something that is beating or throbbing rhythmically
noun a small hole or wound caused by a sharp object
verb to make a small hole or wound with a sharp object
noun a quick and automatic response to a stimulus that does not involve conscious thought
adjective relating to or resembling a net or network; having a reticulated pattern
verb present participle form of the verb 'regulate'
adjective describing something that has the ability to control or regulate itself
noun a fluid that is clear and watery, like serum
adjective describes a fluid containing serum or resembling serum
adjective relating to or affecting an entire system
noun a person or thing that is considered abnormal or monstrous
noun a waste product filtered from the blood by the kidneys and excreted in the form of liquid
noun a pattern of spirals or concentric circles
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noun a short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body.
adjective relating to or consisting of epithelial cells, which are cells forming the outer layer of the skin and the surface layer of mucous and serous membranes
noun a fossilized excrement
noun something that excites or stimulates
noun a series of interconnected things or events
noun a made-up or fictional word with no specific definition
noun A shortened form of the word 'system', often used in the context of technology or computer systems.
noun a long, slender projection of a nerve cell that conducts electrical impulses away from the cell body
noun a molecule that is present in living organisms and is essential for various biological processes
adjective describing a non-living component of an ecosystem
noun a growing together of parts or structures, as of bones or cartilages, to form a joint or union.
adjective characterized by or expressing expectation or anticipation
noun a substance or process that is introduced from outside an organism
adjective relating to or developing from external factors
adjective relating to the surface or end opposite to the mouth in certain animals, such as starfish
adjective a rare or obsolete term used to describe something that lacks the ability to bud or sprout
adjective having no stem or caudex, or only a very short one concealed in the ground
noun a gland that is not essential for normal functioning but supplements the activity of another gland or organ
adjective relating to or designating organisms that lack a distinct head or have a head that is not easily recognizable
adjective describing or relating to a structure resembling a cup-shaped socket, such as the acetabulum in the hip bone
noun a combining form meaning 'colorless'
adjective colorless
noun a small, saclike structure within a gland or organ, often associated with the secretion of a specific substance
adjective relating to or resembling both acini and tubules
adjective relating to or resembling small sacs or alveoli, especially in the structure of certain glands
noun a plural form of aculeus, which refers to a small, sharp-pointed process or spine
adjective having small prickles or spines
verb to gather or accumulate gradually over time
noun a word that represents a person, place, thing, or idea
verb a word that expresses an action, occurrence, or state of being
adjective a word that describes or modifies a noun or pronoun
adverb a word that modifies a verb, adjective, or other adverb
preposition a word that shows the relationship between a noun or pronoun and other words in a sentence
conjunction a word that connects words, phrases, or clauses
interjection a word or phrase used to express emotion or exclamation
article a word that specifies and limits a noun
noun a plural form of the noun adenohypophysis, which refers to the anterior lobe of the pituitary gland
adjective having the characteristics of a gland
noun a complex substance composed of fat cells and cellulose fibers
noun a word that represents a person, place, thing, or idea
adjective a word that describes or modifies a noun or pronoun
noun a Latin prefix meaning 'equal' or 'even'
adjective having the quality of being equal or even
adverb in a way that relates to or involves aerobics or aerobic exercise
adjective describing something related to both summer and autumn
noun a term used in medicine to refer to the cause or origin of a disease or condition
adjective describing a condition of having a secondary shaft behind the main shaft, typically in reference to feathers on an arrow or the tail of a bird