fus-, fun-, fund-, fut-, found-

(Latin > French: pour, melt, blend)

profusely (adverb), more profusely, most profusely
In great quantity or abundance: "Ingrid was bleeding profusely when she was brought to the hospital."
profuseness (s) (noun) (usually no plural)
That which is extremely abundant.
profusion (pruh FYOO zhuhn, proh FYOO zhuhn) (s) (noun), profusions (pl)
1. Imprudent and limitless expenditures; wastefulness: The lavishness or profusion Pat's wife showed when she went shopping was something he could not support, neither financially nor morally.
2. An extravagant amount or bounteous outpouring: Jeanette loved to take walks in the spring and enjoyed the profusion and multitudes of blossoms in the nearby park.
profusive (adjective), more profusive, most profusive
1. Characterized by being lavish in supply or condition; more than enough.
2. A reference to pouring forth or supplying in great abundance; sometimes to the point of being excessive.
refund (s) (noun), refunds (pl)
1. To return money to someone, usually because he or she paid too much or did not receive what was paid for.
2. An amount of money that is returned to someone or the act or process of returning money.
3. Etymology: from Old French refunder, "restore", from Latin refundere "to give back, to restore"; literally, "to pour back", from re-, "back" + fundere, "to pour".
refundable (adjective) (not comparable)
Relating to getting one's money back, or something that is exchanged, in case of customer dissatisfaction, loss, breakage, etc.
refusable (adjective), more refusable, most refusable
1. Capable of declining to accept (something offered); such as, to reject an award.
2. Able to decline to give or to deny (a request, demand, etc.); for example, to decline permission to do something.
3. The ability to express a determination not to do something; such as, not willing to discuss an issue.
refusal (s) (noun), refusals (pl)
1. The opportunity or right to accept or to reject something before it is offered elsewhere.
2. A declaration or an attitude of unwillingness to do or to accept something.
refuse (verb), refuses; refused; refusing
1. To declare a decision or intention not to do something.
2. To decline to accept something offered; for example, the man refused the alcoholic drink.
3. To be unwilling to give, allow, or to agree to something asked for by somebody: "I refused to listen to the man as he complained on and on."
4. Etymology: from Old French refuser which came from Latin refusare, refundere "to pour back, to give back".
refusion (s) (noun), refusions (pl)
1. New or repeated melting, as of metals.
2. The temporary withdrawing of blood from circulation, as for exposing it to air, passage through a heart-lung machine, or for another kind of treatment.
suffuse (verb), suffuses; suffused; suffusing
1. To spread through or over, as with liquid, color, or light.
2. To overspread, as with a vapor, fluid, or color.
suffusion (suh FYOOZ uhn) (s) (noun), suffusions (pl)
1. The act of pouring a fluid over something: The suffusion of water to saturate the plant helped it to regenerate itself after being dry for a long time.
2. The condition of being wet with a liquid: Jack spilled the milk and its suffusion spread over the surface of the table and dripped onto the floor.
3. A spreading out of a body fluid from a vessel into the surrounding tissues: Susan could see the suffusion of blood on her skin after falling down the steps and hurting her arm badly.
suffusive (adjective), more suffusive, most suffusive
1. Spreading through.
2. Functioning to distribute, to allot, or to disperse.
3. Characterized by welling up or spreading over.
thermal diffusivity, thermal diffusion
The ratio of thermal conductivity to the heat capacity per unit volume for a material.

An important criterion for thermal insulators or conductors.

thermodiffusion (s) (noun), thermodiffusions (pl)
1. Diffusion of fluids, either gaseous or liquid, as influenced by the temperature of the fluid.
2. A process in which temperature differentiation within a fluid mixture causes one constituent to flow differently than the mixture as a whole.