her-, hes- +
(Latin: stick to, to stick, cling to, cleave to)
2. To cleave (hold together) to a person or party; to be a close companion, partisan, or follower.
3. To cleave (stick) to an opinion, practice, or method; to continue to maintain or observe.
4. To adhere to a decision, etc.; by confirming, or approving, it with a subsequent decision.
2. Adhesion, adhesiveness, stickiness: "Put more glue on the wallpaper to increase its adherence."
2. Adhesiveness, stickiness: "Warren was putting more glue on the wallpaper to increase its adherence."
The new sports-team adherents exhibited a steadfast adherence to the guidelines for behavior in the stadium.
2. Attachment (to a person or party); adhesion.
3. Persistence in a practice or tenet with steady observance or maintenance.
2. Able to stick firmly to a surface or an object; such as, sticking or uniting, as glue or wax.
2. The grip (of a wheel on a track, etc.) produced by friction, or the friction itself.
3. The action of attaching oneself, or of remaining attached, to a person, party, or tenet, as a partizan, supporter, or follower.
4. A mass of fibrous connective tissue joining two surfaces that are normally separate.
Synthetic nanoadhesive mimics sticking powers of gecko and mussel
Geckos are remarkable for their ability to scurry up vertical surfaces and even move along upside down.
Their feet adhere temporarily, coming off of surfaces again and again like a sticky note; but put those feet underwater, and their ability to stick is dramatically reduced.
Water is an enemy of adhesives, which typically do not work well in wet environments; think of how long a bandage on your finger lasts. Now two Northwestern University biomedical engineers have successfully married the gecko’s adhesive ability with that of an animal well known for its sticking power underwater: the mussel.
Combining the important elements of gecko and mussel adhesion, the new adhesive material, called “geckel”, functions like a sticky note and exhibits strong yet reversible adhesion in both air and water.
“I envision that adhesive tapes made out of geckel could be used to replace sutures for wound closure and may also be useful as a water-resistant adhesive for bandages and drug-delivery patches. Such a bandage would remain firmly attached to the skin during bathing but would permit easy removal upon healing,” said Phillip B. Messersmith, professor of biomedical engineering at Northwestern’s McCormick School of Engineering and Applied Science.
A gecko’s strong but temporary adhesion comes from a mechanical principle known as contact splitting.
Each gecko foot has a flat pad that is densely packed with very fine hairs that are split at the ends, resulting in a greater number of contact points than if the hairs were not split. In fact, the diameter of one of the split hairs is as small as 200 nanometers.
More contact points between hairs and surface result in a significant increase in adhesion force. Flies, bees and other insects also use this strategy.
2. Furnished with an appliance for adhesion; such as, with glue on an envelope flap or on a postage stamp, etc.
2. Having a propensity to form and to maintain attachments to people, and to promote social relationships.
A reference to the substances, masses, or bodies the parts of which stick together.
2. To stick or to hold together in a mass that resists separation.
3. When referring to people: to stick together; to unite or to remain united in some action.
4. Etymology: borrowed from Latin cohaerere, "to cling together, to cleave together"; from co-, "together" + haerere, "to cling to, to cleave to (to hold together and to resist separation)".
2. Having a logical connection or relation; congruity, consistency: "The speaker used his ability to diplomatically utilize coherence as he presented the objectives of the project to the committee."
2. That which has a logical, orderly, and aesthetically consistent relation of parts.
