(geology, of a fold) Having an irregular and/or disconnected pattern.

Third-person singular simple present indicative form of ptyalise

present participle of ptyalise

simple past tense and past participle of ptyalise

Alternative form of ptyalize

Third-person singular simple present indicative form of ptyalize

Relating to ptychography.

(physics) A technique that aims to solve the diffraction-pattern phase problem by interfering adjacent Bragg reflections coherently and thereby determining their relative phase.

Any frog of the family Ptychadenidae

plural of ptychadenid