In biology

Biology

Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy. Biology is a vast subject containing many subdivisions, topics, and disciplines...

 and especially botany

Botany

Botany, plant science, or plant biology is a branch of biology that involves the scientific study of plant life. Traditionally, botany also included the study of fungi, algae and viruses...

, indeterminate growth refers to growth that is not terminated in contrast to determinate growth that stops once a genetically pre-determined structure has completely formed. Thus, a plant that grows and produces flower

Flower

A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants . The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs...

s and fruit

Fruit

In broad terms, a fruit is a structure of a plant that contains its seeds.The term has different meanings dependent on context. In non-technical usage, such as food preparation, fruit normally means the fleshy seed-associated structures of certain plants that are sweet and edible in the raw state,...

 until killed by frost or some other external factor is called indeterminate. For example, the term is applied to tomato

Tomato

The word "tomato" may refer to the plant or the edible, typically red, fruit which it bears. Originating in South America, the tomato was spread around the world following the Spanish colonization of the Americas, and its many varieties are now widely grown, often in greenhouses in cooler...

 varieties that grow in a rather gangly fashion, producing fruit throughout the growing season, and in contrast to a determinate tomato plant, which grows in a more bushy shape and is most productive for a single, larger harvest, then either tapers off with minimal new growth/fruit, or dies. In reference to an inflorescence

Inflorescence

An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...

 (a shoot bearing flowers), an indeterminate type (such as a raceme

Raceme

A raceme is a type of inflorescence that is unbranched and indeterminate and bears pedicellate flowers — flowers having short floral stalks called pedicels — along the axis. In botany, axis means a shoot, in this case one bearing the flowers. In a raceme, the oldest flowers are borne...

) has the flowers developing and opening from the base towards the growing tip. The growth of the shoot is not impeded by the opening of the early flowers or development of fruits and its appearance is of growing and producing flowers indefinitely. In a determinate inflorescence, typically all of the flower buds are formed before the first ones begin to open, and all open more or less at the same time; or a terminal flower blooms first and stops elongation of the main axis.

Animals

In zoology, indeterminate growth refers to the condition where animals grow rapidly when young, and continue to grow after reaching adulthood although at a slower pace. It is common in reptiles, most fish, and many mollusks. The term also refers to the pattern of hair growth seen in humans and a few domestic breeds, but rare in other mammals, where hair continues to grow in length until it is cut.

Mushrooms

Some mushrooms – notably Cantharellus californicus

Cantharellus californicus

Cantharellus californicus, sometimes called the mud puppy or oak chanterelle, is a fungus native to California, USA. It is a member of the genus Cantharellus along with other popular edible chanterelles. It is generally similar in appearance to C. cibarius and C...

 – also exhibit indeterminate growth.