That branch of Biology which deals with the structure of animals and plants, treating of the forms of organs and describing their varieties, homologies, and metamorphoses. See Tectology, and Promorphology.
Inflectional morphology is the changes that happen in words to denote certain grammatical features. For example in English, regular nouns inflect into four forms: Present; come (inflected in the present tense), past; came (inflected in the past tense), third person singular; comes (-s added to inflect into the third person singular). Nouns inflect to show number: house and houses (-es added on to inflect into the plural). Some nouns also inflect to show gender: (actor and actress (-ess added to inflect into the feminine form). Pronouns inflect for number; I (singular), we (plural); and for case; he (nominative), him (objecitve/oblique), his (genitive). English is quite a weakly inflected language having lost most of its Ancient Indo-European fusional morphology.
In biology, it is the branch that deals with organisms-- their form, their size, and their structure. (Physiology is the branch that deals with their function.) Morphology is one of the life sciences.
In linguistics, morphology refers to the patterns of word formations in a given language; it also looks at the structure of words (including parts of speech), and the rules about how words are formed in that language.
Morphology is a branch of biology dealing with the study of the form and structure of organisms and their specific structural features. This includes aspects of the outward appearance as well as the form and structure of the internal parts like bones and organs. This is in contrast to physiology, which deals primarily with function. Morphology is a branch of life science dealing with the study of gross structure of an organism or taxon and its component parts.