⊖ is the Unicode character "circled minus" (U+2296). ⊖ is also known as the Plimsoll symbol. ⊖ may refer to:
- Symmetric difference, the set of elements which are in either of two sets but not in their intersection
- Erosion (morphology), one of the fundamental operations in morphological image processing
- A function for reversal and rotation in the APL programming language
- Symbol for the Escape character in ISO 2047
- Used to designate a thermodynamic quantity in the Standard state in chemistry
- Part of the notation for Standard enthalpy of reaction, as in ΔH⊖reaction
See also[edit]
- Celtic cross
- Coptic cross
- Cross symbol
- Ø (disambiguation)
- ⊗
- ⊕ (disambiguation)
- 𐃏
- ⴲ (U+2D32, tifinagh letter yabh)
- ⦵ (U+29B5, CIRCLE WITH HORIZONTAL BAR)
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction